222020011002221 has 4 divisors (see below), whose sum is σ = 233705274739200. Its totient is φ = 210334747265244.

The previous prime is 222020011002193. The next prime is 222020011002313. The reversal of 222020011002221 is 122200110020222.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 222020011002221 - 2³⁴ = 222002831133037 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 222020011002221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222020011004221) 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, 5842631868461 + ... + 5842631868498.

It is an arithmetic number, because the mean of its divisors is an integer number (58426318684800).

Almost surely, 2^{222020011002221} is an apocalyptic number.

It is an amenable number.

222020011002221 is a deficient number, since it is larger than the sum of its proper divisors (11685263736979).

222020011002221 is a wasteful number, since it uses less digits than its factorization.

222020011002221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11685263736978.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 222020011002221 its reverse (122200110020222), we get a palindrome (344220121022443).

The spelling of 222020011002221 in words is "two hundred twenty-two trillion, twenty billion, eleven million, two thousand, two hundred twenty-one".