1022011101 has 24 divisors (see below), whose sum is σ = 1532416704. Its totient is φ = 680672160.

The previous prime is 1022011097. The next prime is 1022011103. The reversal of 1022011101 is 1011102201.

It is a happy number.

It is not a de Polignac number, because 1022011101 - 2² = 1022011097 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1022011103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 443785 + ... + 446081.

It is an arithmetic number, because the mean of its divisors is an integer number (63850696).

Almost surely, 2^1022011101 is an apocalyptic number.

It is an amenable number.

1022011101 is a deficient number, since it is larger than the sum of its proper divisors (510405603).

1022011101 is an equidigital number, since it uses as much as digits as its factorization.

1022011101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4143 (or 4131 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

The square root of 1022011101 is about 31968.9083485814. The cubic root of 1022011101 is about 1007.2838503767.

Adding to 1022011101 its reverse (1011102201), we get a palindrome (2033113302).

It can be divided in two parts, 10220 and 11101, that added together give a triangular number (21321 = T₂₀₆).

The spelling of 1022011101 in words is "one billion, twenty-two million, eleven thousand, one hundred one".