20222121101 has 48 divisors (see below), whose sum is σ = 25851369600. Its totient is φ = 15675327360.

The previous prime is 20222121091. The next prime is 20222121107. The reversal of 20222121101 is 10112122202.

It is a de Polignac number, because none of the positive numbers 2^k-20222121101 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20222121107) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 8491931 + ... + 8494311.

It is an arithmetic number, because the mean of its divisors is an integer number (538570200).

Almost surely, 2^20222121101 is an apocalyptic number.

It is an amenable number.

20222121101 is a deficient number, since it is larger than the sum of its proper divisors (5629248499).

20222121101 is a wasteful number, since it uses less digits than its factorization.

20222121101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2674 (or 2667 counting only the distinct ones).

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

Adding to 20222121101 its reverse (10112122202), we get a palindrome (30334243303).

It can be divided in two parts, 202221 and 21101, that added together give a palindrome (223322).

The spelling of 20222121101 in words is "twenty billion, two hundred twenty-two million, one hundred twenty-one thousand, one hundred one".