102021021212202 has 48 divisors (see below), whose sum is σ = 221308191366912. Its totient is φ = 33966604752480.

The previous prime is 102021021212171. The next prime is 102021021212221. The reversal of 102021021212202 is 202212120120201.

It is a happy number.

102021021212202 is a `hidden beast` number, since 1 + 0 + 20 + 210 + 21 + 212 + 202 = 666.

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

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 274924728 + ... + 275295564.

It is an arithmetic number, because the mean of its divisors is an integer number (4610587320144).

Almost surely, 2^{102021021212202} is an apocalyptic number.

102021021212202 is an abundant number, since it is smaller than the sum of its proper divisors (119287170154710).

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

102021021212202 is a wasteful number, since it uses less digits than its factorization.

102021021212202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 388963 (or 388960 counting only the distinct ones).

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

Adding to 102021021212202 its reverse (202212120120201), we get a palindrome (304233141332403).

The spelling of 102021021212202 in words is "one hundred two trillion, twenty-one billion, twenty-one million, two hundred twelve thousand, two hundred two".