222312001020 has 48 divisors (see below), whose sum is σ = 639297220128. Its totient is φ = 57680951040.

The previous prime is 222312000997. The next prime is 222312001031. The reversal of 222312001020 is 20100213222.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50068051 + ... + 50072490.

It is an arithmetic number, because the mean of its divisors is an integer number (13318692086).

Almost surely, 2^222312001020 is an apocalyptic number.

222312001020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222312001020 is an abundant number, since it is smaller than the sum of its proper divisors (416985219108).

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

222312001020 is a wasteful number, since it uses less digits than its factorization.

222312001020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100140590 (or 100140588 counting only the distinct ones).

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

Adding to 222312001020 its reverse (20100213222), we get a palindrome (242412214242).

The spelling of 222312001020 in words is "two hundred twenty-two billion, three hundred twelve million, one thousand, twenty".