222011001121 has 16 divisors (see below), whose sum is σ = 273277670400. Its totient is φ = 175635609408.

The previous prime is 222011001019. The next prime is 222011001161. The reversal of 222011001121 is 121100110222.

It is not a de Polignac number, because 222011001121 - 2⁹ = 222011000609 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is not an unprimeable number, because it can be changed into a prime (222011001161) 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, 622320 + ... + 911758.

It is an arithmetic number, because the mean of its divisors is an integer number (17079854400).

Almost surely, 2^222011001121 is an apocalyptic number.

It is an amenable number.

222011001121 is a deficient number, since it is larger than the sum of its proper divisors (51266669279).

222011001121 is a wasteful number, since it uses less digits than its factorization.

222011001121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 297888.

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

Adding to 222011001121 its reverse (121100110222), we get a palindrome (343111111343).

The spelling of 222011001121 in words is "two hundred twenty-two billion, eleven million, one thousand, one hundred twenty-one".