20222110121 has 4 divisors (see below), whose sum is σ = 20265412752. Its totient is φ = 20178807492.

The previous prime is 20222110099. The next prime is 20222110157. The reversal of 20222110121 is 12101122202.

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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20222110121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20222110096 and 20222110105.

It is not an unprimeable number, because it can be changed into a prime (20222112121) 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, 21650615 + ... + 21651548.

It is an arithmetic number, because the mean of its divisors is an integer number (5066353188).

Almost surely, 2^20222110121 is an apocalyptic number.

It is an amenable number.

20222110121 is a deficient number, since it is larger than the sum of its proper divisors (43302631).

20222110121 is an equidigital number, since it uses as much as digits as its factorization.

20222110121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43302630.

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

Adding to 20222110121 its reverse (12101122202), we get a palindrome (32323232323).

The spelling of 20222110121 in words is "twenty billion, two hundred twenty-two million, one hundred ten thousand, one hundred twenty-one".