220131032101 has 4 divisors (see below), whose sum is σ = 220133148172. Its totient is φ = 220128916032.

The previous prime is 220131032059. The next prime is 220131032113. The reversal of 220131032101 is 101230131022.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 152411379201 + 67719652900 = 390399^2 + 260230^2 .

It is a cyclic number.

It is not a de Polignac number, because 220131032101 - 2³⁷ = 82692078629 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 (220131062101) 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, 893460 + ... + 1112893.

It is an arithmetic number, because the mean of its divisors is an integer number (55033287043).

Almost surely, 2^220131032101 is an apocalyptic number.

It is an amenable number.

220131032101 is a deficient number, since it is larger than the sum of its proper divisors (2116071).

220131032101 is a wasteful number, since it uses less digits than its factorization.

220131032101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2116070.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 220131032101 its reverse (101230131022), we get a palindrome (321361163123).

The spelling of 220131032101 in words is "two hundred twenty billion, one hundred thirty-one million, thirty-two thousand, one hundred one".