222121110102001 has 16 divisors (see below), whose sum is σ = 244715694307200. Its totient is φ = 199926861184000.

The previous prime is 222121110101959. The next prime is 222121110102041. The reversal of 222121110102001 is 100201011121222.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-222121110102001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (222121110102041) 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, 108271740 + ... + 110304178.

It is an arithmetic number, because the mean of its divisors is an integer number (15294730894200).

Almost surely, 2^{222121110102001} is an apocalyptic number.

It is an amenable number.

222121110102001 is a deficient number, since it is larger than the sum of its proper divisors (22594584205199).

222121110102001 is a wasteful number, since it uses less digits than its factorization.

222121110102001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2130920.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 222121110102001 its reverse (100201011121222), we get a palindrome (322322121223223).

The spelling of 222121110102001 in words is "two hundred twenty-two trillion, one hundred twenty-one billion, one hundred ten million, one hundred two thousand, one".