222120200121999 has 4 divisors (see below), whose sum is σ = 296160266829336. Its totient is φ = 148080133414664.

The previous prime is 222120200121929. The next prime is 222120200122027. The reversal of 222120200121999 is 999121002021222.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 222120200121999 - 2²¹ = 222120198024847 is a prime.

It is a super-3 number, since 3×222120200121999³ (a number of 44 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 222120200121999.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222120200121929) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37020033353664 + ... + 37020033353669.

It is an arithmetic number, because the mean of its divisors is an integer number (74040066707334).

Almost surely, 2^{222120200121999} is an apocalyptic number.

222120200121999 is a deficient number, since it is larger than the sum of its proper divisors (74040066707337).

222120200121999 is an equidigital number, since it uses as much as digits as its factorization.

222120200121999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74040066707336.

The product of its (nonzero) digits is 46656, while the sum is 42.

The spelling of 222120200121999 in words is "two hundred twenty-two trillion, one hundred twenty billion, two hundred million, one hundred twenty-one thousand, nine hundred ninety-nine".