222000100221021 has 16 divisors (see below), whose sum is σ = 300990734204160. Its totient is φ = 145520313569280.

The previous prime is 222000100221013. The next prime is 222000100221059. The reversal of 222000100221021 is 120122001000222.

It is not a de Polignac number, because 222000100221021 - 2³ = 222000100221013 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222000100221721) 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, 1943323140 + ... + 1943437373.

It is an arithmetic number, because the mean of its divisors is an integer number (18811920887760).

Almost surely, 2^{222000100221021} is an apocalyptic number.

It is an amenable number.

222000100221021 is a deficient number, since it is larger than the sum of its proper divisors (78990633983139).

222000100221021 is a wasteful number, since it uses less digits than its factorization.

222000100221021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3886760836.

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

Adding to 222000100221021 its reverse (120122001000222), we get a palindrome (342122101221243).

The spelling of 222000100221021 in words is "two hundred twenty-two trillion, one hundred million, two hundred twenty-one thousand, twenty-one".