222021221112200 has 48 divisors (see below), whose sum is σ = 516203147217780. Its totient is φ = 88807833282560.

The previous prime is 222021221112167. The next prime is 222021221112233. The reversal of 222021221112200 is 2211122120222.

It is an interprime number because it is at equal distance from previous prime (222021221112167) and next prime (222021221112233).

It can be written as a sum of positive squares in 6 ways, for example, as 58912409895364 + 163108811216836 = 7675442^2 + 12771406^2 .

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 11 ways as a sum of consecutive naturals, for example, 23548772 + ... + 31600428.

Almost surely, 2^{222021221112200} is an apocalyptic number.

222021221112200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222021221112200 is an abundant number, since it is smaller than the sum of its proper divisors (294181926105580).

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

222021221112200 is a wasteful number, since it uses less digits than its factorization.

222021221112200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8189546 (or 8189537 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 222021221112200 its reverse (2211122120222), we get a palindrome (224232343232422).

The spelling of 222021221112200 in words is "two hundred twenty-two trillion, twenty-one billion, two hundred twenty-one million, one hundred twelve thousand, two hundred".