212022021234 has 16 divisors (see below), whose sum is σ = 448987809888. Its totient is φ = 66516712512.

The previous prime is 212022021199. The next prime is 212022021313. The reversal of 212022021234 is 432120220212.

It is a self number, because there is not a number n which added to its sum of digits gives 212022021234.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1039323532 + ... + 1039323735.

It is an arithmetic number, because the mean of its divisors is an integer number (28061738118).

Almost surely, 2^212022021234 is an apocalyptic number.

212022021234 is an abundant number, since it is smaller than the sum of its proper divisors (236965788654).

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

212022021234 is a wasteful number, since it uses less digits than its factorization.

212022021234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2078647289.

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 212022021234 its reverse (432120220212), we get a palindrome (644142241446).

The spelling of 212022021234 in words is "two hundred twelve billion, twenty-two million, twenty-one thousand, two hundred thirty-four".