222012020010221 has 24 divisors (see below), whose sum is σ = 258362861972544. Its totient is φ = 190219406213760.

The previous prime is 222012020010203. The next prime is 222012020010241. The reversal of 222012020010221 is 122010020210222.

It is a happy number.

It is not a de Polignac number, because 222012020010221 - 2¹⁴ = 222012019993837 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 222012020010221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222012020010241) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4669686176 + ... + 4669733718.

It is an arithmetic number, because the mean of its divisors is an integer number (10765119248856).

Almost surely, 2^{222012020010221} is an apocalyptic number.

It is an amenable number.

222012020010221 is a deficient number, since it is larger than the sum of its proper divisors (36350841962323).

222012020010221 is a wasteful number, since it uses less digits than its factorization.

222012020010221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83921 (or 83914 counting only the distinct ones).

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

Adding to 222012020010221 its reverse (122010020210222), we get a palindrome (344022040220443).

The spelling of 222012020010221 in words is "two hundred twenty-two trillion, twelve billion, twenty million, ten thousand, two hundred twenty-one".