211211010020112 has 80 divisors (see below), whose sum is σ = 550647375931392. Its totient is φ = 69757522652160.

The previous prime is 211211010020099. The next prime is 211211010020147. The reversal of 211211010020112 is 211020010112112.

It is a happy number.

It is a super-2 number, since 2×211211010020112² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 211211010020091 and 211211010020100.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18125383 + ... + 27403494.

Almost surely, 2^{211211010020112} is an apocalyptic number.

It is an amenable number.

211211010020112 is an abundant number, since it is smaller than the sum of its proper divisors (339436365911280).

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

211211010020112 is a wasteful number, since it uses less digits than its factorization.

211211010020112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45529776 (or 45529770 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 211211010020112 its reverse (211020010112112), we get a palindrome (422231020132224).

The spelling of 211211010020112 in words is "two hundred eleven trillion, two hundred eleven billion, ten million, twenty thousand, one hundred twelve".