220021030131 has 8 divisors (see below), whose sum is σ = 335270141184. Its totient is φ = 125726302920.

The previous prime is 220021030127. The next prime is 220021030139. The reversal of 220021030131 is 131030120022.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 220021030131 - 2² = 220021030127 is a prime.

It is a super-2 number, since 2×220021030131² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 220021030131.

It is not an unprimeable number, because it can be changed into a prime (220021030139) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5238595935 + ... + 5238595976.

It is an arithmetic number, because the mean of its divisors is an integer number (41908767648).

Almost surely, 2^220021030131 is an apocalyptic number.

220021030131 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

220021030131 is a deficient number, since it is larger than the sum of its proper divisors (115249111053).

220021030131 is a wasteful number, since it uses less digits than its factorization.

220021030131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10477191921.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 220021030131 its reverse (131030120022), we get a palindrome (351051150153).

The spelling of 220021030131 in words is "two hundred twenty billion, twenty-one million, thirty thousand, one hundred thirty-one".