1212322021012 has 24 divisors (see below), whose sum is σ = 2156422591232. Its totient is φ = 596202012000.

The previous prime is 1212322021007. The next prime is 1212322021087. The reversal of 1212322021012 is 2101202232121.

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, 8031637 + ... + 8181187.

Almost surely, 2^{1212322021012} is an apocalyptic number.

It is an amenable number.

1212322021012 is a deficient number, since it is larger than the sum of its proper divisors (944100570220).

1212322021012 is a wasteful number, since it uses less digits than its factorization.

1212322021012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182839 (or 182837 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 1212322021012 its reverse (2101202232121), we get a palindrome (3313524253133).

The spelling of 1212322021012 in words is "one trillion, two hundred twelve billion, three hundred twenty-two million, twenty-one thousand, twelve".