211210222012122 has 64 divisors (see below), whose sum is σ = 434441382480000. Its totient is φ = 68405282390016.

The previous prime is 211210222012079. The next prime is 211210222012129. The reversal of 211210222012122 is 221210222012112.

It is not an unprimeable number, because it can be changed into a prime (211210222012129) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 470316333 + ... + 470765199.

It is an arithmetic number, because the mean of its divisors is an integer number (6788146601250).

Almost surely, 2^{211210222012122} is an apocalyptic number.

211210222012122 is an abundant number, since it is smaller than the sum of its proper divisors (223231160467878).

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

211210222012122 is a wasteful number, since it uses less digits than its factorization.

211210222012122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 451855.

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

Adding to 211210222012122 its reverse (221210222012112), we get a palindrome (432420444024234).

The spelling of 211210222012122 in words is "two hundred eleven trillion, two hundred ten billion, two hundred twenty-two million, twelve thousand, one hundred twenty-two".