1212211010120 has 64 divisors (see below), whose sum is σ = 3132028468800. Its totient is φ = 417603790080.

The previous prime is 1212211010117. The next prime is 1212211010149. The reversal of 1212211010120 is 210101122121.

It is a junction number, because it is equal to n+sod(n) for n = 1212211010095 and 1212211010104.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 72492299 + ... + 72509018.

It is an arithmetic number, because the mean of its divisors is an integer number (48937944825).

Almost surely, 2^{1212211010120} is an apocalyptic number.

1212211010120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1212211010120 is an abundant number, since it is smaller than the sum of its proper divisors (1919817458680).

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

1212211010120 is a wasteful number, since it uses less digits than its factorization.

1212211010120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145001358 (or 145001354 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 1212211010120 its reverse (210101122121), we get a palindrome (1422312132241).

The spelling of 1212211010120 in words is "one trillion, two hundred twelve billion, two hundred eleven million, ten thousand, one hundred twenty".