222221010001211 has 16 divisors (see below), whose sum is σ = 241202607012864. Its totient is φ = 203509124832384.

The previous prime is 222221010001139. The next prime is 222221010001261. The reversal of 222221010001211 is 112100010122222.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-222221010001211 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 222221010001211.

It is not an unprimeable number, because it can be changed into a prime (222221010001261) 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, 124851521 + ... + 126618893.

It is an arithmetic number, because the mean of its divisors is an integer number (15075162938304).

Almost surely, 2^{222221010001211} is an apocalyptic number.

222221010001211 is a deficient number, since it is larger than the sum of its proper divisors (18981597011653).

222221010001211 is a wasteful number, since it uses less digits than its factorization.

222221010001211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1843670.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 222221010001211 its reverse (112100010122222), we get a palindrome (334321020123433).

The spelling of 222221010001211 in words is "two hundred twenty-two trillion, two hundred twenty-one billion, ten million, one thousand, two hundred eleven".