1420022121 has 16 divisors (see below), whose sum is σ = 2291128704. Its totient is φ = 763709184.

The previous prime is 1420022119. The next prime is 1420022129. The reversal of 1420022121 is 1212200241.

It is not a de Polignac number, because 1420022121 - 2¹ = 1420022119 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1420022121.

It is not an unprimeable number, because it can be changed into a prime (1420022129) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1988470 + ... + 1989183.

It is an arithmetic number, because the mean of its divisors is an integer number (143195544).

Almost surely, 2^1420022121 is an apocalyptic number.

It is an amenable number.

1420022121 is a deficient number, since it is larger than the sum of its proper divisors (871106583).

1420022121 is a wasteful number, since it uses less digits than its factorization.

1420022121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3977680.

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 1420022121 is about 37683.1808768846. The cubic root of 1420022121 is about 1123.9967011571.

Adding to 1420022121 its reverse (1212200241), we get a palindrome (2632222362).

The spelling of 1420022121 in words is "one billion, four hundred twenty million, twenty-two thousand, one hundred twenty-one".