212220020042310 has 48 divisors (see below), whose sum is σ = 592483647795696. Its totient is φ = 48507433152192.

The previous prime is 212220020042293. The next prime is 212220020042321. The reversal of 212220020042310 is 13240020022212.

It is a super-2 number, since 2×212220020042310² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

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 23 ways as a sum of consecutive naturals, for example, 72183678817 + ... + 72183681756.

It is an arithmetic number, because the mean of its divisors is an integer number (12343409329077).

Almost surely, 2^{212220020042310} is an apocalyptic number.

212220020042310 is an abundant number, since it is smaller than the sum of its proper divisors (380263627753386).

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

212220020042310 is a wasteful number, since it uses less digits than its factorization.

212220020042310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144367360597 (or 144367360590 counting only the distinct ones).

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

Adding to 212220020042310 its reverse (13240020022212), we get a palindrome (225460040064522).

The spelling of 212220020042310 in words is "two hundred twelve trillion, two hundred twenty billion, twenty million, forty-two thousand, three hundred ten".