222010210121 has 4 divisors (see below), whose sum is σ = 253725954432. Its totient is φ = 190294465812.

The previous prime is 222010210069. The next prime is 222010210129. The reversal of 222010210121 is 121012010222.

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, and also an emirpimes, since its reverse is a distinct semiprime: 121012010222 = 2 ⋅60506005111.

It is a cyclic number.

It is not a de Polignac number, because 222010210121 - 2¹⁸ = 222009947977 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 222010210096 and 222010210105.

It is not an unprimeable number, because it can be changed into a prime (222010210129) 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, 15857872145 + ... + 15857872158.

It is an arithmetic number, because the mean of its divisors is an integer number (63431488608).

Almost surely, 2^222010210121 is an apocalyptic number.

It is an amenable number.

222010210121 is a deficient number, since it is larger than the sum of its proper divisors (31715744311).

222010210121 is an equidigital number, since it uses as much as digits as its factorization.

222010210121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31715744310.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 222010210121 its reverse (121012010222), we get a palindrome (343022220343).

The spelling of 222010210121 in words is "two hundred twenty-two billion, ten million, two hundred ten thousand, one hundred twenty-one".