202121111021102 has 32 divisors (see below), whose sum is σ = 373189058038272. Its totient is φ = 79950916063584.

The previous prime is 202121111021087. The next prime is 202121111021209. The reversal of 202121111021102 is 201120111121202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 61476098 + ... + 64680389.

It is an arithmetic number, because the mean of its divisors is an integer number (11662158063696).

Almost surely, 2^{202121111021102} is an apocalyptic number.

202121111021102 is a deficient number, since it is larger than the sum of its proper divisors (171067947017170).

202121111021102 is a wasteful number, since it uses less digits than its factorization.

202121111021102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126165312.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 202121111021102 its reverse (201120111121202), we get a palindrome (403241222142304).

The spelling of 202121111021102 in words is "two hundred two trillion, one hundred twenty-one billion, one hundred eleven million, twenty-one thousand, one hundred two".