212144231022 has 16 divisors (see below), whose sum is σ = 424532186832. Its totient is φ = 70674122880.

The previous prime is 212144231003. The next prime is 212144231059. The reversal of 212144231022 is 220132441212.

It is a junction number, because it is equal to n+sod(n) for n = 212144230983 and 212144231001.

It is a congruent number.

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, 10143883 + ... + 10164774.

It is an arithmetic number, because the mean of its divisors is an integer number (26533261677).

Almost surely, 2^212144231022 is an apocalyptic number.

212144231022 is an abundant number, since it is smaller than the sum of its proper divisors (212387955810).

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

212144231022 is a wasteful number, since it uses less digits than its factorization.

212144231022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20310403.

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 212144231022 its reverse (220132441212), we get a palindrome (432276672234).

The spelling of 212144231022 in words is "two hundred twelve billion, one hundred forty-four million, two hundred thirty-one thousand, twenty-two".