121202210212102 has 16 divisors (see below), whose sum is σ = 188081795408400. Its totient is φ = 58508487303840.

The previous prime is 121202210212091. The next prime is 121202210212103. The reversal of 121202210212102 is 201212012202121.

It is a self number, because there is not a number n which added to its sum of digits gives 121202210212102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121202210212103) 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, 51052977 + ... + 53374252.

It is an arithmetic number, because the mean of its divisors is an integer number (11755112213025).

Almost surely, 2^{121202210212102} is an apocalyptic number.

121202210212102 is a deficient number, since it is larger than the sum of its proper divisors (66879585196298).

121202210212102 is a wasteful number, since it uses less digits than its factorization.

121202210212102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104447271.

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

Adding to 121202210212102 its reverse (201212012202121), we get a palindrome (322414222414223).

The spelling of 121202210212102 in words is "one hundred twenty-one trillion, two hundred two billion, two hundred ten million, two hundred twelve thousand, one hundred two".