211100120022 has 64 divisors (see below), whose sum is σ = 466891545600. Its totient is φ = 63095086080.

The previous prime is 211100119991. The next prime is 211100120051. The reversal of 211100120022 is 220021001112.

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, 5178054 + ... + 5218662.

It is an arithmetic number, because the mean of its divisors is an integer number (7295180400).

Almost surely, 2^211100120022 is an apocalyptic number.

211100120022 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 211100120022, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (233445772800).

211100120022 is an abundant number, since it is smaller than the sum of its proper divisors (255791425578).

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

211100120022 is a wasteful number, since it uses less digits than its factorization.

211100120022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41701.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 211100120022 its reverse (220021001112), we get a palindrome (431121121134).

The spelling of 211100120022 in words is "two hundred eleven billion, one hundred million, one hundred twenty thousand, twenty-two".