102002012021022 has 16 divisors (see below), whose sum is σ = 207048860222592. Its totient is φ = 33493197976920.

The previous prime is 102002012020973. The next prime is 102002012021027. The reversal of 102002012021022 is 220120210200201.

It is a junction number, because it is equal to n+sod(n) for n = 102002012020992 and 102002012021010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102002012021027) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 126868173754 + ... + 126868174557.

It is an arithmetic number, because the mean of its divisors is an integer number (12940553763912).

Almost surely, 2^{102002012021022} is an apocalyptic number.

102002012021022 is an abundant number, since it is smaller than the sum of its proper divisors (105046848201570).

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

102002012021022 is a wasteful number, since it uses less digits than its factorization.

102002012021022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253736348383.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 102002012021022 its reverse (220120210200201), we get a palindrome (322122222221223).

The spelling of 102002012021022 in words is "one hundred two trillion, two billion, twelve million, twenty-one thousand, twenty-two".