121202101102220 has 96 divisors (see below), whose sum is σ = 258243129365760. Its totient is φ = 47775568055040.

The previous prime is 121202101102189. The next prime is 121202101102289. The reversal of 121202101102220 is 22201101202121.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1697734286 + ... + 1697805674.

It is an arithmetic number, because the mean of its divisors is an integer number (2690032597560).

Almost surely, 2^{121202101102220} is an apocalyptic number.

121202101102220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121202101102220 is an abundant number, since it is smaller than the sum of its proper divisors (137041028263540).

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

121202101102220 is a wasteful number, since it uses less digits than its factorization.

121202101102220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74055 (or 74053 counting only the distinct ones).

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

Adding to 121202101102220 its reverse (22201101202121), we get a palindrome (143403202304341).

Subtracting from 121202101102220 its reverse (22201101202121), we obtain a palindrome (99000999900099).

The spelling of 121202101102220 in words is "one hundred twenty-one trillion, two hundred two billion, one hundred one million, one hundred two thousand, two hundred twenty".