102121010221202 has 64 divisors (see below), whose sum is σ = 188170169907456. Its totient is φ = 40568011038720.

The previous prime is 102121010221129. The next prime is 102121010221267. The reversal of 102121010221202 is 202122010121201.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 72607202 + ... + 74000322.

It is an arithmetic number, because the mean of its divisors is an integer number (2940158904804).

Almost surely, 2^{102121010221202} is an apocalyptic number.

102121010221202 is a deficient number, since it is larger than the sum of its proper divisors (86049159686254).

102121010221202 is a wasteful number, since it uses less digits than its factorization.

102121010221202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1397811.

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

Adding to 102121010221202 its reverse (202122010121201), we get a palindrome (304243020342403).

The spelling of 102121010221202 in words is "one hundred two trillion, one hundred twenty-one billion, ten million, two hundred twenty-one thousand, two hundred two".