121012211120 has 40 divisors (see below), whose sum is σ = 297903593664. Its totient is φ = 45557537792.

The previous prime is 121012211093. The next prime is 121012211153. The reversal of 121012211120 is 21112210121.

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 121012211095 and 121012211104.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44488424 + ... + 44491143.

Almost surely, 2^121012211120 is an apocalyptic number.

121012211120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121012211120 is an abundant number, since it is smaller than the sum of its proper divisors (176891382544).

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

121012211120 is a wasteful number, since it uses less digits than its factorization.

121012211120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88979597 (or 88979591 counting only the distinct ones).

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

Adding to 121012211120 its reverse (21112210121), we get a palindrome (142124421241).

Subtracting from 121012211120 its reverse (21112210121), we obtain a palindrome (99900000999).

The spelling of 121012211120 in words is "one hundred twenty-one billion, twelve million, two hundred eleven thousand, one hundred twenty".