211211220032 has 28 divisors (see below), whose sum is σ = 424863675036. Its totient is φ = 104158955520.

The previous prime is 211211220001. The next prime is 211211220079. The reversal of 211211220032 is 230022112112.

It can be written as a sum of positive squares in 2 ways, for example, as 73493041216 + 137718178816 = 271096^2 + 371104^2 .

It is a super-2 number, since 2×211211220032² (a number of 23 digits) contains 22 as substring.

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, 22599269 + ... + 22608612.

Almost surely, 2^211211220032 is an apocalyptic number.

It is an amenable number.

211211220032 is an abundant number, since it is smaller than the sum of its proper divisors (213652455004).

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

211211220032 is an equidigital number, since it uses as much as digits as its factorization.

211211220032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45207966 (or 45207956 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 211211220032 its reverse (230022112112), we get a palindrome (441233332144).

The spelling of 211211220032 in words is "two hundred eleven billion, two hundred eleven million, two hundred twenty thousand, thirty-two".