222101211020111 has 4 divisors (see below), whose sum is σ = 222113283724872. Its totient is φ = 222089138315352.

The previous prime is 222101211020057. The next prime is 222101211020137. The reversal of 222101211020111 is 111020112101222.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 222101211020111 - 2⁶ = 222101211020047 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 222101211020111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222101211029111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6036324785 + ... + 6036361578.

It is an arithmetic number, because the mean of its divisors is an integer number (55528320931218).

Almost surely, 2^{222101211020111} is an apocalyptic number.

222101211020111 is a deficient number, since it is larger than the sum of its proper divisors (12072704761).

222101211020111 is a wasteful number, since it uses less digits than its factorization.

222101211020111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12072704760.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 222101211020111 its reverse (111020112101222), we get a palindrome (333121323121333).

The spelling of 222101211020111 in words is "two hundred twenty-two trillion, one hundred one billion, two hundred eleven million, twenty thousand, one hundred eleven".