20001000212112 has 80 divisors (see below), whose sum is σ = 52094421993600. Its totient is φ = 6612317085696.

The previous prime is 20001000212107. The next prime is 20001000212113. The reversal of 20001000212112 is 21121200010002.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is not an unprimeable number, because it can be changed into a prime (20001000212113) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 820638 + ... + 6377730.

It is an arithmetic number, because the mean of its divisors is an integer number (651180274920).

Almost surely, 2^{20001000212112} is an apocalyptic number.

It is an amenable number.

20001000212112 is an abundant number, since it is smaller than the sum of its proper divisors (32093421781488).

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

20001000212112 is a wasteful number, since it uses less digits than its factorization.

20001000212112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5557720 (or 5557714 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 20001000212112 its reverse (21121200010002), we get a palindrome (41122200222114).

The spelling of 20001000212112 in words is "twenty trillion, one billion, two hundred twelve thousand, one hundred twelve".