222121121102202 has 16 divisors (see below), whose sum is σ = 507705419662272. Its totient is φ = 63463177457760.

The previous prime is 222121121102189. The next prime is 222121121102233. The reversal of 222121121102202 is 202201121121222.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2644299060699 + ... + 2644299060782.

It is an arithmetic number, because the mean of its divisors is an integer number (31731588728892).

Almost surely, 2^{222121121102202} is an apocalyptic number.

222121121102202 is an abundant number, since it is smaller than the sum of its proper divisors (285584298560070).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

222121121102202 is a wasteful number, since it uses less digits than its factorization.

222121121102202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5288598121493.

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

Adding to 222121121102202 its reverse (202201121121222), we get a palindrome (424322242223424).

The spelling of 222121121102202 in words is "two hundred twenty-two trillion, one hundred twenty-one billion, one hundred twenty-one million, one hundred two thousand, two hundred two".