211211022202122 has 16 divisors (see below), whose sum is σ = 422731058352192. Its totient is φ = 70352171742720.

The previous prime is 211211022202109. The next prime is 211211022202123. The reversal of 211211022202122 is 221202220112112.

It is a super-2 number, since 2×211211022202122² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (211211022202123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12875572279 + ... + 12875588682.

It is an arithmetic number, because the mean of its divisors is an integer number (26420691147012).

Almost surely, 2^{211211022202122} is an apocalyptic number.

211211022202122 is an abundant number, since it is smaller than the sum of its proper divisors (211520036150070).

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

211211022202122 is a wasteful number, since it uses less digits than its factorization.

211211022202122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25751162333.

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

Adding to 211211022202122 its reverse (221202220112112), we get a palindrome (432413242314234).

The spelling of 211211022202122 in words is "two hundred eleven trillion, two hundred eleven billion, twenty-two million, two hundred two thousand, one hundred twenty-two".