1202120402 has 16 divisors (see below), whose sum is σ = 2062999680. Its totient is φ = 514639008.

The previous prime is 1202120399. The next prime is 1202120407. The reversal of 1202120402 is 2040212021.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is not an unprimeable number, because it can be changed into a prime (1202120407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32702 + ... + 58937.

It is an arithmetic number, because the mean of its divisors is an integer number (128937480).

Almost surely, 2^1202120402 is an apocalyptic number.

1202120402 is a deficient number, since it is larger than the sum of its proper divisors (860879278).

1202120402 is an equidigital number, since it uses as much as digits as its factorization.

1202120402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92585.

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

The square root of 1202120402 is about 34671.6080100130. The cubic root of 1202120402 is about 1063.2841073724.

Adding to 1202120402 its reverse (2040212021), we get a palindrome (3242332423).

It can be divided in two parts, 12021 and 20402, that added together give a palindrome (32423).

The spelling of 1202120402 in words is "one billion, two hundred two million, one hundred twenty thousand, four hundred two".