220202040402 has 16 divisors (see below), whose sum is σ = 489337867680. Its totient is φ = 73400680116.

The previous prime is 220202040397. The next prime is 220202040427. The reversal of 220202040402 is 204040202022.

220202040402 is a `hidden beast` number, since 2 + 20 + 202 + 0 + 40 + 402 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2038907728 + ... + 2038907835.

It is an arithmetic number, because the mean of its divisors is an integer number (30583616730).

Almost surely, 2^220202040402 is an apocalyptic number.

220202040402 is an abundant number, since it is smaller than the sum of its proper divisors (269135827278).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

220202040402 is a wasteful number, since it uses less digits than its factorization.

220202040402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4077815574 (or 4077815568 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 18.

Adding to 220202040402 its reverse (204040202022), we get a palindrome (424242242424).

It can be divided in two parts, 2202020 and 40402, that added together give a palindrome (2242422).

The spelling of 220202040402 in words is "two hundred twenty billion, two hundred two million, forty thousand, four hundred two".