20100212122112 has 40 divisors (see below), whose sum is σ = 40161680249856. Its totient is φ = 10049977377792.

The previous prime is 20100212122079. The next prime is 20100212122127. The reversal of 20100212122112 is 21122121200102.

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, 49308953 + ... + 49714919.

Almost surely, 2^{20100212122112} is an apocalyptic number.

It is an amenable number.

20100212122112 is a deficient number, since it is larger than the sum of its proper divisors (20061468127744).

20100212122112 is an frugal number, since it uses more digits than its factorization.

20100212122112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 502688 (or 502672 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 20100212122112 its reverse (21122121200102), we get a palindrome (41222333322214).

The spelling of 20100212122112 in words is "twenty trillion, one hundred billion, two hundred twelve million, one hundred twenty-two thousand, one hundred twelve".