2211211012212 has 96 divisors (see below), whose sum is σ = 5836927913600. Its totient is φ = 723748836096.

The previous prime is 2211211012201. The next prime is 2211211012223. The reversal of 2211211012212 is 2122101121122.

2211211012212 is a `hidden beast` number, since 221 + 121 + 101 + 221 + 2 = 666.

It is an interprime number because it is at equal distance from previous prime (2211211012201) and next prime (2211211012223).

It is a super-2 number, since 2×2211211012212² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1776714 + ... + 2753022.

Almost surely, 2^{2211211012212} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2211211012212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2918463956800).

2211211012212 is an abundant number, since it is smaller than the sum of its proper divisors (3625716901388).

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

2211211012212 is a wasteful number, since it uses less digits than its factorization.

2211211012212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 976702 (or 976694 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 2211211012212 its reverse (2122101121122), we get a palindrome (4333312133334).

The spelling of 2211211012212 in words is "two trillion, two hundred eleven billion, two hundred eleven million, twelve thousand, two hundred twelve".