222211210110121 has 4 divisors (see below), whose sum is σ = 224287950391632. Its totient is φ = 220134469828612.

The previous prime is 222211210110101. The next prime is 222211210110133. The reversal of 222211210110121 is 121011012112222.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 222211210110121 - 2⁴¹ = 220012186854569 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (222211210110101) 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, 1038370140595 + ... + 1038370140808.

It is an arithmetic number, because the mean of its divisors is an integer number (56071987597908).

Almost surely, 2^{222211210110121} is an apocalyptic number.

It is an amenable number.

222211210110121 is a deficient number, since it is larger than the sum of its proper divisors (2076740281511).

222211210110121 is a wasteful number, since it uses less digits than its factorization.

222211210110121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2076740281510.

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

Adding to 222211210110121 its reverse (121011012112222), we get a palindrome (343222222222343).

The spelling of 222211210110121 in words is "two hundred twenty-two trillion, two hundred eleven billion, two hundred ten million, one hundred ten thousand, one hundred twenty-one".