212210231022 has 32 divisors (see below), whose sum is σ = 499318192800. Its totient is φ = 66575758464.

The previous prime is 212210230997. The next prime is 212210231033. The reversal of 212210231022 is 220132012212.

It is a super-2 number, since 2×212210231022² (a number of 23 digits) contains 22 as substring.

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 = 212210230986 and 212210231004.

It is a congruent number.

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, 115581997 + ... + 115583832.

It is an arithmetic number, because the mean of its divisors is an integer number (15603693525).

Almost surely, 2^212210231022 is an apocalyptic number.

212210231022 is an abundant number, since it is smaller than the sum of its proper divisors (287107961778).

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

212210231022 is a wasteful number, since it uses less digits than its factorization.

212210231022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231165857 (or 231165851 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 212210231022 its reverse (220132012212), we get a palindrome (432342243234).

The spelling of 212210231022 in words is "two hundred twelve billion, two hundred ten million, two hundred thirty-one thousand, twenty-two".