222021211002000 has 80 divisors (see below), whose sum is σ = 715796384289792. Its totient is φ = 59205656265600.

The previous prime is 222021211001999. The next prime is 222021211002007. The reversal of 222021211002000 is 200112120222.

It is a tau number, because it is divible by the number of its divisors (80).

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

It is not an unprimeable number, because it can be changed into a prime (222021211002007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18501761584 + ... + 18501773583.

Almost surely, 2^{222021211002000} is an apocalyptic number.

222021211002000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222021211002000 is an abundant number, since it is smaller than the sum of its proper divisors (493775173287792).

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

222021211002000 is a wasteful number, since it uses less digits than its factorization.

222021211002000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37003535193 (or 37003535177 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 222021211002000 its reverse (200112120222), we get a palindrome (222221323122222).

The spelling of 222021211002000 in words is "two hundred twenty-two trillion, twenty-one billion, two hundred eleven million, two thousand".