100212231121 has 8 divisors (see below), whose sum is σ = 106283536704. Its totient is φ = 94283779920.

The previous prime is 100212231113. The next prime is 100212231137. The reversal of 100212231121 is 121132212001.

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 100212231121 - 2³ = 100212231113 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 100212231095 and 100212231104.

It is not an unprimeable number, because it can be changed into a prime (100212234121) 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, 35712151 + ... + 35714956.

It is an arithmetic number, because the mean of its divisors is an integer number (13285442088).

Almost surely, 2^100212231121 is an apocalyptic number.

It is an amenable number.

100212231121 is a deficient number, since it is larger than the sum of its proper divisors (6071305583).

100212231121 is an equidigital number, since it uses as much as digits as its factorization.

100212231121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71427191.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 100212231121 its reverse (121132212001), we get a palindrome (221344443122).

The spelling of 100212231121 in words is "one hundred billion, two hundred twelve million, two hundred thirty-one thousand, one hundred twenty-one".