121213032412 has 24 divisors (see below), whose sum is σ = 224974163232. Its totient is φ = 57021096000.

The previous prime is 121213032407. The next prime is 121213032461. The reversal of 121213032412 is 214230312121.

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, 10793839 + ... + 10805062.

It is an arithmetic number, because the mean of its divisors is an integer number (9373923468).

Almost surely, 2^121213032412 is an apocalyptic number.

It is an amenable number.

121213032412 is a deficient number, since it is larger than the sum of its proper divisors (103761130820).

121213032412 is a wasteful number, since it uses less digits than its factorization.

121213032412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21598989 (or 21598987 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 121213032412 its reverse (214230312121), we get a palindrome (335443344533).

The spelling of 121213032412 in words is "one hundred twenty-one billion, two hundred thirteen million, thirty-two thousand, four hundred twelve".