212131301022 has 48 divisors (see below), whose sum is σ = 473720197392. Its totient is φ = 68554442880.

The previous prime is 212131300999. The next prime is 212131301047. The reversal of 212131301022 is 220103131212.

212131301022 is a `hidden beast` number, since 212 + 131 + 301 + 0 + 22 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 212131300986 and 212131301004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 379608 + ... + 753899.

It is an arithmetic number, because the mean of its divisors is an integer number (9869170779).

Almost surely, 2^212131301022 is an apocalyptic number.

212131301022 is an abundant number, since it is smaller than the sum of its proper divisors (261588896370).

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

212131301022 is a wasteful number, since it uses less digits than its factorization.

212131301022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1133833 (or 1133830 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 212131301022 its reverse (220103131212), we get a palindrome (432234432234).

The spelling of 212131301022 in words is "two hundred twelve billion, one hundred thirty-one million, three hundred one thousand, twenty-two".