100212231 has 16 divisors (see below), whose sum is σ = 156257024. Its totient is φ = 55931904.

The previous prime is 100212223. The next prime is 100212253. The reversal of 100212231 is 132212001.

It is not a de Polignac number, because 100212231 - 2³ = 100212223 is a prime.

It is a super-2 number, since 2×100212231² = 20084982483994722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100211231) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54586 + ... + 56391.

It is an arithmetic number, because the mean of its divisors is an integer number (9766064).

Almost surely, 2^100212231 is an apocalyptic number.

100212231 is a deficient number, since it is larger than the sum of its proper divisors (56044793).

100212231 is a wasteful number, since it uses less digits than its factorization.

100212231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111030.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 100212231 is about 10010.6059257170. The cubic root of 100212231 is about 464.4870143520.

Adding to 100212231 its reverse (132212001), we get a palindrome (232424232).

The spelling of 100212231 in words is "one hundred million, two hundred twelve thousand, two hundred thirty-one".