223122100020 has 48 divisors (see below), whose sum is σ = 632650018560. Its totient is φ = 58746070656.

The previous prime is 223122100009. The next prime is 223122100027. The reversal of 223122100020 is 20001221322.

It is a happy number.

It is a super-3 number, since 3×223122100020³ (a number of 35 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223122100027) 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, 23531347 + ... + 23540826.

It is an arithmetic number, because the mean of its divisors is an integer number (13180208720).

Almost surely, 2^223122100020 is an apocalyptic number.

223122100020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

223122100020 is an abundant number, since it is smaller than the sum of its proper divisors (409527918540).

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

223122100020 is a wasteful number, since it uses less digits than its factorization.

223122100020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47072264 (or 47072262 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 223122100020 its reverse (20001221322), we get a palindrome (243123321342).

The spelling of 223122100020 in words is "two hundred twenty-three billion, one hundred twenty-two million, one hundred thousand, twenty".