20012112101212 has 24 divisors (see below), whose sum is σ = 43662790039680. Its totient is φ = 7796926792560.

The previous prime is 20012112101197. The next prime is 20012112101237. The reversal of 20012112101212 is 21210121121002.

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, 32487194662 + ... + 32487195277.

It is an arithmetic number, because the mean of its divisors is an integer number (1819282918320).

Almost surely, 2^{20012112101212} is an apocalyptic number.

20012112101212 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

20012112101212 is an abundant number, since it is smaller than the sum of its proper divisors (23650677938468).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20012112101212 is a wasteful number, since it uses less digits than its factorization.

20012112101212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64974389961 (or 64974389959 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 20012112101212 its reverse (21210121121002), we get a palindrome (41222233222214).

The spelling of 20012112101212 in words is "twenty trillion, twelve billion, one hundred twelve million, one hundred one thousand, two hundred twelve".