121021231012 has 24 divisors (see below), whose sum is σ = 231056259840. Its totient is φ = 55005905760.

The previous prime is 121021230971. The next prime is 121021231039. The reversal of 121021231012 is 210132120121.

It is a super-2 number, since 2×121021231012² (a number of 23 digits) contains 22 as substring.

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, 621453 + ... + 792619.

It is an arithmetic number, because the mean of its divisors is an integer number (9627344160).

Almost surely, 2^121021231012 is an apocalyptic number.

It is an amenable number.

121021231012 is a deficient number, since it is larger than the sum of its proper divisors (110035028828).

121021231012 is a wasteful number, since it uses less digits than its factorization.

121021231012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187251 (or 187249 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 121021231012 its reverse (210132120121), we get a palindrome (331153351133).

The spelling of 121021231012 in words is "one hundred twenty-one billion, twenty-one million, two hundred thirty-one thousand, twelve".