222010221112121 has 12 divisors (see below), whose sum is σ = 242131108317840. Its totient is φ = 203458177157040.

The previous prime is 222010221112091. The next prime is 222010221112123. The reversal of 222010221112121 is 121211122010222.

It is not a de Polignac number, because 222010221112121 - 2³⁸ = 221735343205177 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 222010221112093 and 222010221112102.

It is not an unprimeable number, because it can be changed into a prime (222010221112123) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4725407975 + ... + 4725454956.

It is an arithmetic number, because the mean of its divisors is an integer number (20177592359820).

Almost surely, 2^{222010221112121} is an apocalyptic number.

It is an amenable number.

222010221112121 is a deficient number, since it is larger than the sum of its proper divisors (20120887205719).

222010221112121 is a wasteful number, since it uses less digits than its factorization.

222010221112121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9450863096 (or 9450863083 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 222010221112121 its reverse (121211122010222), we get a palindrome (343221343122343).

The spelling of 222010221112121 in words is "two hundred twenty-two trillion, ten billion, two hundred twenty-one million, one hundred twelve thousand, one hundred twenty-one".