100212222331 has 4 divisors (see below), whose sum is σ = 107920854832. Its totient is φ = 92503589832.

The previous prime is 100212222307. The next prime is 100212222343. The reversal of 100212222331 is 133222212001.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 100212222331 - 2⁹ = 100212221819 is a prime.

It is a super-2 number, since 2×100212222331² (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 = 100212222299 and 100212222308.

It is not an unprimeable number, because it can be changed into a prime (100212222301) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3854316231 + ... + 3854316256.

It is an arithmetic number, because the mean of its divisors is an integer number (26980213708).

Almost surely, 2^100212222331 is an apocalyptic number.

100212222331 is a deficient number, since it is larger than the sum of its proper divisors (7708632501).

100212222331 is an equidigital number, since it uses as much as digits as its factorization.

100212222331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7708632500.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 100212222331 its reverse (133222212001), we get a palindrome (233434434332).

The spelling of 100212222331 in words is "one hundred billion, two hundred twelve million, two hundred twenty-two thousand, three hundred thirty-one".