222023320021100 has 72 divisors (see below), whose sum is σ = 519735325570608. Its totient is φ = 81838185350400.

The previous prime is 222023320021073. The next prime is 222023320021157. The reversal of 222023320021100 is 1120023320222.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 144711491 + ... + 146237690.

Almost surely, 2^{222023320021100} is an apocalyptic number.

222023320021100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222023320021100 is an abundant number, since it is smaller than the sum of its proper divisors (297712005549508).

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

222023320021100 is a wasteful number, since it uses less digits than its factorization.

222023320021100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 290949795 (or 290949788 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 222023320021100 its reverse (1120023320222), we get a palindrome (223143343341322).

The spelling of 222023320021100 in words is "two hundred twenty-two trillion, twenty-three billion, three hundred twenty million, twenty-one thousand, one hundred".