212202022220 has 24 divisors (see below), whose sum is σ = 454032253584. Its totient is φ = 83279283776.

The previous prime is 212202022159. The next prime is 212202022223. The reversal of 212202022220 is 22220202212.

It is a super-3 number, since 3×212202022220³ (a number of 35 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (212202022223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 100094234 + ... + 100096353.

It is an arithmetic number, because the mean of its divisors is an integer number (18918010566).

Almost surely, 2^212202022220 is an apocalyptic number.

212202022220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212202022220 is an abundant number, since it is smaller than the sum of its proper divisors (241830231364).

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

212202022220 is a wasteful number, since it uses less digits than its factorization.

212202022220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200190649 (or 200190647 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 17.

Adding to 212202022220 its reverse (22220202212), we get a palindrome (234422224432).

The spelling of 212202022220 in words is "two hundred twelve billion, two hundred two million, twenty-two thousand, two hundred twenty".