222221021002221 has 8 divisors (see below), whose sum is σ = 296411392078240. Its totient is φ = 148088998630512.

The previous prime is 222221021002139. The next prime is 222221021002259. The reversal of 222221021002221 is 122200120122222.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 222221021002221 - 2¹⁰ = 222221021001197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222221021000221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14587167190 + ... + 14587182423.

It is an arithmetic number, because the mean of its divisors is an integer number (37051424009780).

Almost surely, 2^{222221021002221} is an apocalyptic number.

It is an amenable number.

222221021002221 is a deficient number, since it is larger than the sum of its proper divisors (74190371076019).

222221021002221 is a wasteful number, since it uses less digits than its factorization.

222221021002221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29174352155.

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 222221021002221 its reverse (122200120122222), we get a palindrome (344421141124443).

The spelling of 222221021002221 in words is "two hundred twenty-two trillion, two hundred twenty-one billion, twenty-one million, two thousand, two hundred twenty-one".