20100001011212 has 24 divisors (see below), whose sum is σ = 36704611998432. Its totient is φ = 9612975257600.

The previous prime is 20100001011191. The next prime is 20100001011221. The reversal of 20100001011212 is 21211010000102.

It is a junction number, because it is equal to n+sod(n) for n = 20100001011193 and 20100001011202.

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, 13592012 + ... + 14998092.

It is an arithmetic number, because the mean of its divisors is an integer number (1529358833268).

Almost surely, 2^{20100001011212} is an apocalyptic number.

It is an amenable number.

20100001011212 is a deficient number, since it is larger than the sum of its proper divisors (16604610987220).

20100001011212 is a wasteful number, since it uses less digits than its factorization.

20100001011212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1561489 (or 1561487 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 20100001011212 its reverse (21211010000102), we get a palindrome (41311011011314).

The spelling of 20100001011212 in words is "twenty trillion, one hundred billion, one million, eleven thousand, two hundred twelve".