211918819112 has 64 divisors (see below), whose sum is σ = 533501942400. Its totient is φ = 76214557440.

The previous prime is 211918819097. The next prime is 211918819127.

211918819112 is nontrivially palindromic in base 10.

It is an interprime number because it is at equal distance from previous prime (211918819097) and next prime (211918819127).

It is a Harshad number since it is a multiple of its sum of digits (44).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13223687 + ... + 13239702.

It is an arithmetic number, because the mean of its divisors is an integer number (8335967850).

Almost surely, 2^211918819112 is an apocalyptic number.

211918819112 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

211918819112 is an abundant number, since it is smaller than the sum of its proper divisors (321583123288).

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

211918819112 is a wasteful number, since it uses less digits than its factorization.

211918819112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26463426 (or 26463422 counting only the distinct ones).

The product of its digits is 20736, while the sum is 44.

The spelling of 211918819112 in words is "two hundred eleven billion, nine hundred eighteen million, eight hundred nineteen thousand, one hundred twelve".