102021133012 has 6 divisors (see below), whose sum is σ = 178536982778. Its totient is φ = 51010566504.

The previous prime is 102021133009. The next prime is 102021133033. The reversal of 102021133012 is 210331120201.

It can be written as a sum of positive squares in only one way, i.e., 100233027216 + 1788105796 = 316596^2 + 42286^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12752641623 + ... + 12752641630.

Almost surely, 2^102021133012 is an apocalyptic number.

It is an amenable number.

102021133012 is a deficient number, since it is larger than the sum of its proper divisors (76515849766).

102021133012 is a wasteful number, since it uses less digits than its factorization.

102021133012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25505283257 (or 25505283255 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 102021133012 its reverse (210331120201), we get a palindrome (312352253213).

The spelling of 102021133012 in words is "one hundred two billion, twenty-one million, one hundred thirty-three thousand, twelve".