211112101222122 has 32 divisors (see below), whose sum is σ = 422869017130560. Its totient is φ = 70263233371520.

The previous prime is 211112101222109. The next prime is 211112101222177. The reversal of 211112101222122 is 221222101211112.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 558958222 + ... + 559335782.

It is an arithmetic number, because the mean of its divisors is an integer number (13214656785330).

Almost surely, 2^{211112101222122} is an apocalyptic number.

211112101222122 is an abundant number, since it is smaller than the sum of its proper divisors (211756915908438).

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

211112101222122 is a wasteful number, since it uses less digits than its factorization.

211112101222122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 519638.

The product of its (nonzero) digits is 128, while the sum is 21.

Adding to 211112101222122 its reverse (221222101211112), we get a palindrome (432334202433234).

The spelling of 211112101222122 in words is "two hundred eleven trillion, one hundred twelve billion, one hundred one million, two hundred twenty-two thousand, one hundred twenty-two".