20022121101 has 16 divisors (see below), whose sum is σ = 27620429760. Its totient is φ = 12886070400.

The previous prime is 20022121099. The next prime is 20022121103. The reversal of 20022121101 is 10112122002.

It is an interprime number because it is at equal distance from previous prime (20022121099) and next prime (20022121103).

It is not a de Polignac number, because 20022121101 - 2¹ = 20022121099 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20022121103) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1075926 + ... + 1094376.

It is an arithmetic number, because the mean of its divisors is an integer number (1726276860).

Almost surely, 2^20022121101 is an apocalyptic number.

It is an amenable number.

20022121101 is a deficient number, since it is larger than the sum of its proper divisors (7598308659).

20022121101 is a wasteful number, since it uses less digits than its factorization.

20022121101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30956.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 20022121101 its reverse (10112122002), we get a palindrome (30134243103).

Subtracting from 20022121101 its reverse (10112122002), we obtain a palindrome (9909999099).

The spelling of 20022121101 in words is "twenty billion, twenty-two million, one hundred twenty-one thousand, one hundred one".