222111021212101 has 16 divisors (see below), whose sum is σ = 254654548178688. Its totient is φ = 189770850921600.

The previous prime is 222111021212089. The next prime is 222111021212123. The reversal of 222111021212101 is 101212120111222.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-222111021212101 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222111021212131) 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, 267920091 + ... + 268747831.

It is an arithmetic number, because the mean of its divisors is an integer number (15915909261168).

Almost surely, 2^{222111021212101} is an apocalyptic number.

It is an amenable number.

222111021212101 is a deficient number, since it is larger than the sum of its proper divisors (32543526966587).

222111021212101 is a wasteful number, since it uses less digits than its factorization.

222111021212101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 950532.

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 222111021212101 its reverse (101212120111222), we get a palindrome (323323141323323).

The spelling of 222111021212101 in words is "two hundred twenty-two trillion, one hundred eleven billion, twenty-one million, two hundred twelve thousand, one hundred one".