20122221232300 has 72 divisors (see below), whose sum is σ = 47636377920432. Its totient is φ = 7316926752000.

The previous prime is 20122221232283. The next prime is 20122221232303. The reversal of 20122221232300 is 323212222102.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (20122221232303) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 34405114 + ... + 34985086.

It is an arithmetic number, because the mean of its divisors is an integer number (661616360006).

Almost surely, 2^{20122221232300} is an apocalyptic number.

20122221232300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20122221232300 is an abundant number, since it is smaller than the sum of its proper divisors (27514156688132).

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

20122221232300 is a wasteful number, since it uses less digits than its factorization.

20122221232300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 611539 (or 611532 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 20122221232300 its reverse (323212222102), we get a palindrome (20445433454402).

The spelling of 20122221232300 in words is "twenty trillion, one hundred twenty-two billion, two hundred twenty-one million, two hundred thirty-two thousand, three hundred".