1022120402 has 16 divisors (see below), whose sum is σ = 1560570624. Its totient is φ = 501984000.

The previous prime is 1022120401. The next prime is 1022120413. The reversal of 1022120402 is 2040212201.

It is not an unprimeable number, because it can be changed into a prime (1022120401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25202 + ... + 51762.

It is an arithmetic number, because the mean of its divisors is an integer number (97535664).

Almost surely, 2^1022120402 is an apocalyptic number.

1022120402 is a deficient number, since it is larger than the sum of its proper divisors (538450222).

1022120402 is a wasteful number, since it uses less digits than its factorization.

1022120402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26905.

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 1022120402 is about 31970.6177919664. The cubic root of 1022120402 is about 1007.3197577517.

Adding to 1022120402 its reverse (2040212201), we get a palindrome (3062332603).

The spelling of 1022120402 in words is "one billion, twenty-two million, one hundred twenty thousand, four hundred two".