22021121100202 has 48 divisors (see below), whose sum is σ = 38599492377600. Its totient is φ = 9394675248672.

The previous prime is 22021121100193. The next prime is 22021121100263. The reversal of 22021121100202 is 20200112112022.

It is a happy number.

It is an unprimeable number.

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, 492763503 + ... + 492808189.

It is an arithmetic number, because the mean of its divisors is an integer number (804156091200).

Almost surely, 2^{22021121100202} is an apocalyptic number.

22021121100202 is a deficient number, since it is larger than the sum of its proper divisors (16578371277398).

22021121100202 is a wasteful number, since it uses less digits than its factorization.

22021121100202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67475 (or 67468 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 22021121100202 its reverse (20200112112022), we get a palindrome (42221233212224).

The spelling of 22021121100202 in words is "twenty-two trillion, twenty-one billion, one hundred twenty-one million, one hundred thousand, two hundred two".