102121012222102 has 16 divisors (see below), whose sum is σ = 162193292531712. Its totient is φ = 48056621994880.

The previous prime is 102121012222057. The next prime is 102121012222123. The reversal of 102121012222102 is 201222210121201.

It is a super-2 number, since 2×102121012222102² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 102121012222102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5013973 + ... + 15145360.

It is an arithmetic number, because the mean of its divisors is an integer number (10137080783232).

Almost surely, 2^{102121012222102} is an apocalyptic number.

102121012222102 is a deficient number, since it is larger than the sum of its proper divisors (60072280309610).

102121012222102 is a wasteful number, since it uses less digits than its factorization.

102121012222102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20308343.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 102121012222102 its reverse (201222210121201), we get a palindrome (303343222343303).

The spelling of 102121012222102 in words is "one hundred two trillion, one hundred twenty-one billion, twelve million, two hundred twenty-two thousand, one hundred two".