211100101012122 has 96 divisors (see below), whose sum is σ = 491775409750464. Its totient is φ = 60235169702400.

The previous prime is 211100101012081. The next prime is 211100101012127. The reversal of 211100101012122 is 221210101001112.

It is a happy number.

It is a super-2 number, since 2×211100101012122² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (211100101012127) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3932465122 + ... + 3932518802.

It is an arithmetic number, because the mean of its divisors is an integer number (5122660518234).

Almost surely, 2^{211100101012122} is an apocalyptic number.

211100101012122 is an abundant number, since it is smaller than the sum of its proper divisors (280675308738342).

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

211100101012122 is a wasteful number, since it uses less digits than its factorization.

211100101012122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71004 (or 70997 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 211100101012122 its reverse (221210101001112), we get a palindrome (432310202013234).

The spelling of 211100101012122 in words is "two hundred eleven trillion, one hundred billion, one hundred one million, twelve thousand, one hundred twenty-two".