212122323020 has 24 divisors (see below), whose sum is σ = 449867346768. Its totient is φ = 84008840000.

The previous prime is 212122322983. The next prime is 212122323041. The reversal of 212122323020 is 20323221212.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 212122322983 and 212122323001.

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, 52503506 + ... + 52507545.

It is an arithmetic number, because the mean of its divisors is an integer number (18744472782).

Almost surely, 2^212122323020 is an apocalyptic number.

212122323020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212122323020 is an abundant number, since it is smaller than the sum of its proper divisors (237745023748).

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

212122323020 is a wasteful number, since it uses less digits than its factorization.

212122323020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105011161 (or 105011159 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 212122323020 its reverse (20323221212), we get a palindrome (232445544232).

The spelling of 212122323020 in words is "two hundred twelve billion, one hundred twenty-two million, three hundred twenty-three thousand, twenty".