102220031 has 8 divisors (see below), whose sum is σ = 108925200. Its totient is φ = 95591808.

The previous prime is 102220007. The next prime is 102220039. The reversal of 102220031 is 130022201.

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 102220031 - 2¹⁸ = 101957887 is a prime.

It is a super-2 number, since 2×102220031² = 20897869475281922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102219994 and 102220021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102220039) 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, 16481 + ... + 21818.

It is an arithmetic number, because the mean of its divisors is an integer number (13615650).

Almost surely, 2^102220031 is an apocalyptic number.

102220031 is a deficient number, since it is larger than the sum of its proper divisors (6705169).

102220031 is a wasteful number, since it uses less digits than its factorization.

102220031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38473.

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

The square root of 102220031 is about 10110.3922278020. The cubic root of 102220031 is about 467.5685979391.

Adding to 102220031 its reverse (130022201), we get a palindrome (232242232).

The spelling of 102220031 in words is "one hundred two million, two hundred twenty thousand, thirty-one".