202121211100022 has 16 divisors (see below), whose sum is σ = 303469093987200. Its totient is φ = 100964868438720.

The previous prime is 202121211099979. The next prime is 202121211100093. The reversal of 202121211100022 is 220001112121202.

It is a congruent number.

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, 12892379 + ... + 23884217.

It is an arithmetic number, because the mean of its divisors is an integer number (18966818374200).

Almost surely, 2^{202121211100022} is an apocalyptic number.

202121211100022 is a deficient number, since it is larger than the sum of its proper divisors (101347882887178).

202121211100022 is a wasteful number, since it uses less digits than its factorization.

202121211100022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11000551.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 202121211100022 its reverse (220001112121202), we get a palindrome (422122323221224).

The spelling of 202121211100022 in words is "two hundred two trillion, one hundred twenty-one billion, two hundred eleven million, one hundred thousand, twenty-two".