211212022111122 has 16 divisors (see below), whose sum is σ = 422435235605472. Its totient is φ = 70402142139840.

The previous prime is 211212022111099. The next prime is 211212022111199. The reversal of 211212022111122 is 221111220212112.

It is a super-3 number, since 3×211212022111122³ (a number of 44 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 466062279 + ... + 466515242.

It is an arithmetic number, because the mean of its divisors is an integer number (26402202225342).

Almost surely, 2^{211212022111122} is an apocalyptic number.

211212022111122 is an abundant number, since it is smaller than the sum of its proper divisors (211223213494350).

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

211212022111122 is a wasteful number, since it uses less digits than its factorization.

211212022111122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 932615273.

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

Adding to 211212022111122 its reverse (221111220212112), we get a palindrome (432323242323234).

The spelling of 211212022111122 in words is "two hundred eleven trillion, two hundred twelve billion, twenty-two million, one hundred eleven thousand, one hundred twenty-two".