2120100001212 has 24 divisors (see below), whose sum is σ = 4948161111936. Its totient is φ = 706519841968.

The previous prime is 2120100001199. The next prime is 2120100001223. The reversal of 2120100001212 is 2121000010212.

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

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, 22470768 + ... + 22564919.

It is an arithmetic number, because the mean of its divisors is an integer number (206173379664).

Almost surely, 2^{2120100001212} is an apocalyptic number.

It is an amenable number.

2120100001212 is an abundant number, since it is smaller than the sum of its proper divisors (2828061110724).

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

2120100001212 is a wasteful number, since it uses less digits than its factorization.

2120100001212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45039617 (or 45039615 counting only the distinct ones).

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

Adding to 2120100001212 its reverse (2121000010212), we get a palindrome (4241100011424).

The spelling of 2120100001212 in words is "two trillion, one hundred twenty billion, one hundred million, one thousand, two hundred twelve".