202021112101022 has 4 divisors (see below), whose sum is σ = 303031668151536. Its totient is φ = 101010556050510.

The previous prime is 202021112101021. The next prime is 202021112101037. The reversal of 202021112101022 is 220101211120202.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202021112101021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50505278025254 + ... + 50505278025257.

It is an arithmetic number, because the mean of its divisors is an integer number (75757917037884).

Almost surely, 2^{202021112101022} is an apocalyptic number.

202021112101022 is a deficient number, since it is larger than the sum of its proper divisors (101010556050514).

202021112101022 is a wasteful number, since it uses less digits than its factorization.

202021112101022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101010556050513.

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

Adding to 202021112101022 its reverse (220101211120202), we get a palindrome (422122323221224).

The spelling of 202021112101022 in words is "two hundred two trillion, twenty-one billion, one hundred twelve million, one hundred one thousand, twenty-two".