100121002223031 has 6 divisors (see below), whose sum is σ = 144619225433280. Its totient is φ = 66747334815348.

The previous prime is 100121002223023. The next prime is 100121002223059. The reversal of 100121002223031 is 130322200121001.

It is not a de Polignac number, because 100121002223031 - 2³ = 100121002223023 is a prime.

It is a super-2 number, since 2×100121002223031² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 100121002222995 and 100121002223013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100121002223831) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5562277901271 + ... + 5562277901288.

It is an arithmetic number, because the mean of its divisors is an integer number (24103204238880).

Almost surely, 2^{100121002223031} is an apocalyptic number.

100121002223031 is a deficient number, since it is larger than the sum of its proper divisors (44498223210249).

100121002223031 is a wasteful number, since it uses less digits than its factorization.

100121002223031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11124555802565 (or 11124555802562 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 100121002223031 its reverse (130322200121001), we get a palindrome (230443202344032).

The spelling of 100121002223031 in words is "one hundred trillion, one hundred twenty-one billion, two million, two hundred twenty-three thousand, thirty-one".