220233212131 has 4 divisors (see below), whose sum is σ = 220264784712. Its totient is φ = 220201639552.

The previous prime is 220233212063. The next prime is 220233212159. The reversal of 220233212131 is 131212332022.

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

It is a cyclic number.

It is not a de Polignac number, because 220233212131 - 2¹⁵ = 220233179363 is a prime.

It is a super-2 number, since 2×220233212131² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (220233216131) 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, 15775825 + ... + 15789778.

It is an arithmetic number, because the mean of its divisors is an integer number (55066196178).

Almost surely, 2^220233212131 is an apocalyptic number.

220233212131 is a deficient number, since it is larger than the sum of its proper divisors (31572581).

220233212131 is an equidigital number, since it uses as much as digits as its factorization.

220233212131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31572580.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 220233212131 its reverse (131212332022), we get a palindrome (351445544153).

The spelling of 220233212131 in words is "two hundred twenty billion, two hundred thirty-three million, two hundred twelve thousand, one hundred thirty-one".