211221000112 has 20 divisors (see below), whose sum is σ = 427033761840. Its totient is φ = 101018739008.

The previous prime is 211221000103. The next prime is 211221000161. The reversal of 211221000112 is 211000122112.

211221000112 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×211221000112² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 211221000092 and 211221000101.

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, 286984687 + ... + 286985422.

It is an arithmetic number, because the mean of its divisors is an integer number (21351688092).

Almost surely, 2^211221000112 is an apocalyptic number.

It is an amenable number.

211221000112 is an abundant number, since it is smaller than the sum of its proper divisors (215812761728).

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

211221000112 is a wasteful number, since it uses less digits than its factorization.

211221000112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 573970140 (or 573970134 counting only the distinct ones).

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

Adding to 211221000112 its reverse (211000122112), we get a palindrome (422221122224).

The spelling of 211221000112 in words is "two hundred eleven billion, two hundred twenty-one million, one hundred twelve", and thus it is an aban number.