10220222121 has 4 divisors (see below), whose sum is σ = 13626962832. Its totient is φ = 6813481412.

The previous prime is 10220222119. The next prime is 10220222203. The reversal of 10220222121 is 12122202201.

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: 12122202201 = 3 ⋅4040734067.

It is a cyclic number.

It is not a de Polignac number, because 10220222121 - 2¹ = 10220222119 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 10220222121.

It is not an unprimeable number, because it can be changed into a prime (10220222101) 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, 1703370351 + ... + 1703370356.

It is an arithmetic number, because the mean of its divisors is an integer number (3406740708).

Almost surely, 2^10220222121 is an apocalyptic number.

It is an amenable number.

10220222121 is a deficient number, since it is larger than the sum of its proper divisors (3406740711).

10220222121 is an equidigital number, since it uses as much as digits as its factorization.

10220222121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3406740710.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 10220222121 its reverse (12122202201), we get a palindrome (22342424322).

The spelling of 10220222121 in words is "ten billion, two hundred twenty million, two hundred twenty-two thousand, one hundred twenty-one".