222201021121211 has 32 divisors (see below), whose sum is σ = 245782217189376. Its totient is φ = 199199554560000.

The previous prime is 222201021121201. The next prime is 222201021121319. The reversal of 222201021121211 is 112121120102222.

It is a cyclic number.

It is not a de Polignac number, because 222201021121211 - 2³⁸ = 221926143214267 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (222201021121201) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2749870136 + ... + 2749950938.

It is an arithmetic number, because the mean of its divisors is an integer number (7680694287168).

Almost surely, 2^{222201021121211} is an apocalyptic number.

222201021121211 is a deficient number, since it is larger than the sum of its proper divisors (23581196068165).

222201021121211 is a wasteful number, since it uses less digits than its factorization.

222201021121211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90803.

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 222201021121211 its reverse (112121120102222), we get a palindrome (334322141223433).

The spelling of 222201021121211 in words is "two hundred twenty-two trillion, two hundred one billion, twenty-one million, one hundred twenty-one thousand, two hundred eleven".