220002100031 has 8 divisors (see below), whose sum is σ = 262362753024. Its totient is φ = 180374392440.

The previous prime is 220002099971. The next prime is 220002100079. The reversal of 220002100031 is 130001200022.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 220002100031 - 2¹⁴ = 220002083647 is a prime.

It is a super-2 number, since 2×220002100031² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 220002099985 and 220002100021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220002100631) 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, 683236175 + ... + 683236496.

It is an arithmetic number, because the mean of its divisors is an integer number (32795344128).

Almost surely, 2^220002100031 is an apocalyptic number.

220002100031 is a deficient number, since it is larger than the sum of its proper divisors (42360652993).

220002100031 is a wasteful number, since it uses less digits than its factorization.

220002100031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1366472701.

The product of its (nonzero) digits is 24, while the sum is 11.

Adding to 220002100031 its reverse (130001200022), we get a palindrome (350003300053).

Subtracting from 220002100031 its reverse (130001200022), we obtain a palindrome (90000900009).

The spelling of 220002100031 in words is "two hundred twenty billion, two million, one hundred thousand, thirty-one".