20100232121012 has 12 divisors (see below), whose sum is σ = 35178176672100. Its totient is φ = 10049324500416.

The previous prime is 20100232120999. The next prime is 20100232121027. The reversal of 20100232121012 is 21012123200102.

It can be written as a sum of positive squares in 2 ways, for example, as 1695480035236 + 18404752085776 = 1302106^2 + 4290076^2 .

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, 197832887 + ... + 197934462.

It is an arithmetic number, because the mean of its divisors is an integer number (2931514722675).

Almost surely, 2^{20100232121012} is an apocalyptic number.

It is an amenable number.

20100232121012 is a deficient number, since it is larger than the sum of its proper divisors (15077944551088).

20100232121012 is a wasteful number, since it uses less digits than its factorization.

20100232121012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 395780050 (or 395780048 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 20100232121012 its reverse (21012123200102), we get a palindrome (41112355321114).

The spelling of 20100232121012 in words is "twenty trillion, one hundred billion, two hundred thirty-two million, one hundred twenty-one thousand, twelve".