222011100121 has 16 divisors (see below), whose sum is σ = 244969417728. Its totient is φ = 200495750400.

The previous prime is 222011100089. The next prime is 222011100137. The reversal of 222011100121 is 121001110222.

It is a cyclic number.

It is not a de Polignac number, because 222011100121 - 2⁵ = 222011100089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (222011100151) 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, 3768036 + ... + 3826501.

It is an arithmetic number, because the mean of its divisors is an integer number (15310588608).

Almost surely, 2^222011100121 is an apocalyptic number.

It is an amenable number.

222011100121 is a deficient number, since it is larger than the sum of its proper divisors (22958317607).

222011100121 is a wasteful number, since it uses less digits than its factorization.

222011100121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7594632.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 222011100121 its reverse (121001110222), we get a palindrome (343012210343).

The spelling of 222011100121 in words is "two hundred twenty-two billion, eleven million, one hundred thousand, one hundred twenty-one".