1022222401 has 6 divisors (see below), whose sum is σ = 1078855602. Its totient is φ = 968420880.

The previous prime is 1022222251. The next prime is 1022222413. The reversal of 1022222401 is 1042222201.

1022222401 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 901200400 + 121022001 = 30020^2 + 11001^2 .

It is not a de Polignac number, because 1022222401 - 2¹³ = 1022214209 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1022222441) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1415460 + ... + 1416181.

It is an arithmetic number, because the mean of its divisors is an integer number (179809267).

Almost surely, 2^1022222401 is an apocalyptic number.

It is an amenable number.

1022222401 is a deficient number, since it is larger than the sum of its proper divisors (56633201).

1022222401 is an equidigital number, since it uses as much as digits as its factorization.

1022222401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2831679 (or 2831660 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 1022222401 is about 31972.2129512488. The cubic root of 1022222401 is about 1007.3532639773.

Adding to 1022222401 its reverse (1042222201), we get a palindrome (2064444602).

It can be divided in two parts, 10222 and 22401, that added together give a palindrome (32623).

The spelling of 1022222401 in words is "one billion, twenty-two million, two hundred twenty-two thousand, four hundred one".