211211002212222 has 32 divisors (see below), whose sum is σ = 444152022763680. Its totient is φ = 66861594817920.

The previous prime is 211211002212179. The next prime is 211211002212263. The reversal of 211211002212222 is 222212200112112.

It is a super-2 number, since 2×211211002212222² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

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, 9949631473 + ... + 9949652700.

It is an arithmetic number, because the mean of its divisors is an integer number (13879750711365).

Almost surely, 2^{211211002212222} is an apocalyptic number.

211211002212222 is an abundant number, since it is smaller than the sum of its proper divisors (232941020551458).

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

211211002212222 is a wasteful number, since it uses less digits than its factorization.

211211002212222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19899284268.

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 211211002212222 its reverse (222212200112112), we get a palindrome (433423202324334).

The spelling of 211211002212222 in words is "two hundred eleven trillion, two hundred eleven billion, two million, two hundred twelve thousand, two hundred twenty-two".