100022031 has 24 divisors (see below), whose sum is σ = 147592224. Its totient is φ = 65257920.

The previous prime is 100022029. The next prime is 100022071. The reversal of 100022031 is 130220001.

It is a happy number.

It is not a de Polignac number, because 100022031 - 2¹ = 100022029 is a prime.

It is a super-2 number, since 2×100022031² = 20008813370729922, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100022071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 99825 + ... + 100821.

It is an arithmetic number, because the mean of its divisors is an integer number (6149676).

Almost surely, 2^100022031 is an apocalyptic number.

100022031 is a deficient number, since it is larger than the sum of its proper divisors (47570193).

100022031 is a wasteful number, since it uses less digits than its factorization.

100022031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1231 (or 1228 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 9.

The square root of 100022031 is about 10001.1014893361. The cubic root of 100022031 is about 464.1929671396.

Adding to 100022031 its reverse (130220001), we get a palindrome (230242032).

The spelling of 100022031 in words is "one hundred million, twenty-two thousand, thirty-one".