20122131101 has 4 divisors (see below), whose sum is σ = 20242623072. Its totient is φ = 20001639132.

The previous prime is 20122131077. The next prime is 20122131109. The reversal of 20122131101 is 10113122102.

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: 10113122102 = 2 ⋅5056561051.

It is a cyclic number.

It is not a de Polignac number, because 20122131101 - 2¹⁴ = 20122114717 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20122131109) 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, 60245735 + ... + 60246068.

It is an arithmetic number, because the mean of its divisors is an integer number (5060655768).

Almost surely, 2^20122131101 is an apocalyptic number.

It is an amenable number.

20122131101 is a deficient number, since it is larger than the sum of its proper divisors (120491971).

20122131101 is a wasteful number, since it uses less digits than its factorization.

20122131101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120491970.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 20122131101 its reverse (10113122102), we get a palindrome (30235253203).

The spelling of 20122131101 in words is "twenty billion, one hundred twenty-two million, one hundred thirty-one thousand, one hundred one".