202012221021102 has 24 divisors (see below), whose sum is σ = 441942593564784. Its totient is φ = 66683645773344.

The previous prime is 202012221021067. The next prime is 202012221021137. The reversal of 202012221021102 is 201120122210202.

It is a happy number.

202012221021102 is a `hidden beast` number, since 20 + 201 + 22 + 210 + 211 + 0 + 2 = 666.

It is an interprime number because it is at equal distance from previous prime (202012221021067) and next prime (202012221021137).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 54480100903 + ... + 54480104610.

It is an arithmetic number, because the mean of its divisors is an integer number (18414274731866).

Almost surely, 2^{202012221021102} is an apocalyptic number.

202012221021102 is an abundant number, since it is smaller than the sum of its proper divisors (239930372543682).

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

202012221021102 is a wasteful number, since it uses less digits than its factorization.

202012221021102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108960205624 (or 108960205621 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 202012221021102 its reverse (201120122210202), we get a palindrome (403132343231304).

The spelling of 202012221021102 in words is "two hundred two trillion, twelve billion, two hundred twenty-one million, twenty-one thousand, one hundred two".