222212111110101 has 40 divisors (see below), whose sum is σ = 379371481441920. Its totient is φ = 126976987681632.

The previous prime is 222212111110097. The next prime is 222212111110109. The reversal of 222212111110101 is 101011111212222.

It is a happy number.

222212111110101 is a `hidden beast` number, since 22 + 221 + 211 + 1 + 110 + 101 = 666.

It is not a de Polignac number, because 222212111110101 - 2² = 222212111110097 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222212111110109) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 52054840 + ... + 56161646.

It is an arithmetic number, because the mean of its divisors is an integer number (9484287036048).

Almost surely, 2^{222212111110101} is an apocalyptic number.

222212111110101 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

222212111110101 is a deficient number, since it is larger than the sum of its proper divisors (157159370331819).

222212111110101 is an equidigital number, since it uses as much as digits as its factorization.

222212111110101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4202255 (or 4202246 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 18.

Adding to 222212111110101 its reverse (101011111212222), we get a palindrome (323223222322323).

The spelling of 222212111110101 in words is "two hundred twenty-two trillion, two hundred twelve billion, one hundred eleven million, one hundred ten thousand, one hundred one".