20212132323220 has 24 divisors (see below), whose sum is σ = 42445611307008. Its totient is φ = 8084827514400.

The previous prime is 20212132323209. The next prime is 20212132323239. The reversal of 20212132323220 is 2232323121202.

It is a congruent number.

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, 5762685 + ... + 8580955.

It is an arithmetic number, because the mean of its divisors is an integer number (1768567137792).

Almost surely, 2^{20212132323220} is an apocalyptic number.

20212132323220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20212132323220 is an abundant number, since it is smaller than the sum of its proper divisors (22233478983788).

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

20212132323220 is a wasteful number, since it uses less digits than its factorization.

20212132323220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3176871 (or 3176869 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 20212132323220 its reverse (2232323121202), we get a palindrome (22444455444422).

The spelling of 20212132323220 in words is "twenty trillion, two hundred twelve billion, one hundred thirty-two million, three hundred twenty-three thousand, two hundred twenty".