212200021022 has 24 divisors (see below), whose sum is σ = 349921803000. Its totient is φ = 96439440240.

The previous prime is 212200021001. The next prime is 212200021139. The reversal of 212200021022 is 220120002212.

It is a junction number, because it is equal to n+sod(n) for n = 212200020988 and 212200021006.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1558229 + ... + 1688927.

It is an arithmetic number, because the mean of its divisors is an integer number (14580075125).

Almost surely, 2^212200021022 is an apocalyptic number.

212200021022 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

212200021022 is a deficient number, since it is larger than the sum of its proper divisors (137721781978).

212200021022 is a wasteful number, since it uses less digits than its factorization.

212200021022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137432 (or 137421 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 212200021022 its reverse (220120002212), we get a palindrome (432320023234).

The spelling of 212200021022 in words is "two hundred twelve billion, two hundred million, twenty-one thousand, twenty-two".