20122021101 has 16 divisors (see below), whose sum is σ = 33020753024. Its totient is φ = 10613813184.

The previous prime is 20122021081. The next prime is 20122021159. The reversal of 20122021101 is 10112022102.

It is not a de Polignac number, because 20122021101 - 2²² = 20117826797 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20122121101) 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, 36853246 + ... + 36853791.

It is an arithmetic number, because the mean of its divisors is an integer number (2063797064).

Almost surely, 2^20122021101 is an apocalyptic number.

20122021101 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

20122021101 is a deficient number, since it is larger than the sum of its proper divisors (12898731923).

20122021101 is a wasteful number, since it uses less digits than its factorization.

20122021101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73707060.

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

Adding to 20122021101 its reverse (10112022102), we get a palindrome (30234043203).

The spelling of 20122021101 in words is "twenty billion, one hundred twenty-two million, twenty-one thousand, one hundred one".