211001120020012 has 24 divisors (see below), whose sum is σ = 427783092647456. Its totient is φ = 89190297307008.

The previous prime is 211001120020007. The next prime is 211001120020049. The reversal of 211001120020012 is 210020021100112.

It is a junction number, because it is equal to n+sod(n) for n = 211001120019974 and 211001120020001.

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, 51614753343 + ... + 51614757430.

Almost surely, 2^{211001120020012} is an apocalyptic number.

It is an amenable number.

211001120020012 is an abundant number, since it is smaller than the sum of its proper divisors (216781972627444).

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

211001120020012 is a wasteful number, since it uses less digits than its factorization.

211001120020012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103229510857 (or 103229510855 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 211001120020012 its reverse (210020021100112), we get a palindrome (421021141120124).

The spelling of 211001120020012 in words is "two hundred eleven trillion, one billion, one hundred twenty million, twenty thousand, twelve".