20212332220 has 48 divisors (see below), whose sum is σ = 42674688000. Its totient is φ = 8041448000.

The previous prime is 20212332211. The next prime is 20212332229. The reversal of 20212332220 is 2223321202.

It is an interprime number because it is at equal distance from previous prime (20212332211) and next prime (20212332229).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20212332229) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4209381 + ... + 4214179.

It is an arithmetic number, because the mean of its divisors is an integer number (889056000).

Almost surely, 2^20212332220 is an apocalyptic number.

20212332220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20212332220 is an abundant number, since it is smaller than the sum of its proper divisors (22462355780).

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

20212332220 is a wasteful number, since it uses less digits than its factorization.

20212332220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5898 (or 5896 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

Adding to 20212332220 its reverse (2223321202), we get a palindrome (22435653422).

The spelling of 20212332220 in words is "twenty billion, two hundred twelve million, three hundred thirty-two thousand, two hundred twenty".