121220133101012 has 24 divisors (see below), whose sum is σ = 231492370374720. Its totient is φ = 55082889959360.

The previous prime is 121220133101009. The next prime is 121220133101117. The reversal of 121220133101012 is 210101331022121.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 429120728 + ... + 429403119.

It is an arithmetic number, because the mean of its divisors is an integer number (9645515432280).

Almost surely, 2^{121220133101012} is an apocalyptic number.

It is an amenable number.

121220133101012 is a deficient number, since it is larger than the sum of its proper divisors (110272237273708).

121220133101012 is a wasteful number, since it uses less digits than its factorization.

121220133101012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 858527071 (or 858527069 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 121220133101012 its reverse (210101331022121), we get a palindrome (331321464123133).

The spelling of 121220133101012 in words is "one hundred twenty-one trillion, two hundred twenty billion, one hundred thirty-three million, one hundred one thousand, twelve".