222221121022101 has 16 divisors (see below), whose sum is σ = 296722205729280. Its totient is φ = 147933863439600.

The previous prime is 222221121022081. The next prime is 222221121022111. The reversal of 222221121022101 is 101220121122222.

It is not a de Polignac number, because 222221121022101 - 2⁶ = 222221121022037 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222221121022111) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10853835 + ... + 23711768.

It is an arithmetic number, because the mean of its divisors is an integer number (18545137858080).

Almost surely, 2^{222221121022101} is an apocalyptic number.

It is an amenable number.

222221121022101 is a deficient number, since it is larger than the sum of its proper divisors (74501084707179).

222221121022101 is a wasteful number, since it uses less digits than its factorization.

222221121022101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34568696.

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 222221121022101 its reverse (101220121122222), we get a palindrome (323441242144323).

The spelling of 222221121022101 in words is "two hundred twenty-two trillion, two hundred twenty-one billion, one hundred twenty-one million, twenty-two thousand, one hundred one".