121231334012 has 12 divisors (see below), whose sum is σ = 219470518680. Its totient is φ = 58525471536.

The previous prime is 121231334009. The next prime is 121231334027. The reversal of 121231334012 is 210433132121.

It is a super-2 number, since 2×121231334012² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 522548738 + ... + 522548969.

It is an arithmetic number, because the mean of its divisors is an integer number (18289209890).

Almost surely, 2^121231334012 is an apocalyptic number.

It is an amenable number.

121231334012 is a deficient number, since it is larger than the sum of its proper divisors (98239184668).

121231334012 is a wasteful number, since it uses less digits than its factorization.

121231334012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1045097740 (or 1045097738 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 121231334012 its reverse (210433132121), we get a palindrome (331664466133).

The spelling of 121231334012 in words is "one hundred twenty-one billion, two hundred thirty-one million, three hundred thirty-four thousand, twelve".