2100100001212 has 12 divisors (see below), whose sum is σ = 3676734278280. Its totient is φ = 1049604493136.

The previous prime is 2100100001183. The next prime is 2100100001231. The reversal of 2100100001212 is 2121000010012.

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, 111366262 + ... + 111385117.

It is an arithmetic number, because the mean of its divisors is an integer number (306394523190).

Almost surely, 2^{2100100001212} is an apocalyptic number.

It is an amenable number.

2100100001212 is a deficient number, since it is larger than the sum of its proper divisors (1576634277068).

2100100001212 is a wasteful number, since it uses less digits than its factorization.

2100100001212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222753740 (or 222753738 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 2100100001212 its reverse (2121000010012), we get a palindrome (4221100011224).

The spelling of 2100100001212 in words is "two trillion, one hundred billion, one hundred million, one thousand, two hundred twelve".