222001200020 has 24 divisors (see below), whose sum is σ = 467922835968. Its totient is φ = 88472800800.

The previous prime is 222001199993. The next prime is 222001200037. The reversal of 222001200020 is 20002100222.

It is a junction number, because it is equal to n+sod(n) for n = 222001199974 and 222001200010.

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, 20474396 + ... + 20485235.

It is an arithmetic number, because the mean of its divisors is an integer number (19496784832).

Almost surely, 2^222001200020 is an apocalyptic number.

222001200020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222001200020 is an abundant number, since it is smaller than the sum of its proper divisors (245921635948).

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

222001200020 is a wasteful number, since it uses less digits than its factorization.

222001200020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40959911 (or 40959909 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 11.

Adding to 222001200020 its reverse (20002100222), we get a palindrome (242003300242).

The spelling of 222001200020 in words is "two hundred twenty-two billion, one million, two hundred thousand, twenty".