211211022122010 has 48 divisors (see below), whose sum is σ = 549360439326504. Its totient is φ = 56301218021376.

The previous prime is 211211022121993. The next prime is 211211022122033. The reversal of 211211022122010 is 10221220112112.

211211022122010 is a `hidden beast` number, since 2 + 1 + 1 + 211 + 0 + 221 + 220 + 10 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 170316672594849 + 40894349527161 = 13050543^2 + 6394869^2 .

It is a super-2 number, since 2×211211022122010² (a number of 29 digits) contains 22 as substring.

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

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 452290567 + ... + 452757306.

Almost surely, 2^{211211022122010} is an apocalyptic number.

211211022122010 is an abundant number, since it is smaller than the sum of its proper divisors (338149417204494).

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

211211022122010 is a wasteful number, since it uses less digits than its factorization.

211211022122010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 905050479 (or 905050476 counting only the distinct ones).

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

Adding to 211211022122010 its reverse (10221220112112), we get a palindrome (221432242234122).

The spelling of 211211022122010 in words is "two hundred eleven trillion, two hundred eleven billion, twenty-two million, one hundred twenty-two thousand, ten".