121010222212220 has 48 divisors (see below), whose sum is σ = 286782846386400. Its totient is φ = 42486347608320.

The previous prime is 121010222212211. The next prime is 121010222212261. The reversal of 121010222212220 is 22212222010121.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 121010222212192 and 121010222212201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9483553355 + ... + 9483566114.

It is an arithmetic number, because the mean of its divisors is an integer number (5974642633050).

Almost surely, 2^{121010222212220} is an apocalyptic number.

121010222212220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121010222212220 is an abundant number, since it is smaller than the sum of its proper divisors (165772624174180).

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

121010222212220 is a wasteful number, since it uses less digits than its factorization.

121010222212220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18967119518 (or 18967119516 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 121010222212220 its reverse (22212222010121), we get a palindrome (143222444222341).

The spelling of 121010222212220 in words is "one hundred twenty-one trillion, ten billion, two hundred twenty-two million, two hundred twelve thousand, two hundred twenty".