100012220999 has 4 divisors (see below), whose sum is σ = 101278198560. Its totient is φ = 98746243440.

The previous prime is 100012220993. The next prime is 100012221007. The reversal of 100012220999 is 999022210001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 999022210001 = 17 ⋅58766012353.

It is a cyclic number.

It is not a de Polignac number, because 100012220999 - 2²⁸ = 99743785543 is a prime.

It is a super-3 number, since 3×100012220999³ (a number of 34 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100012220993) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 632988662 + ... + 632988819.

It is an arithmetic number, because the mean of its divisors is an integer number (25319549640).

Almost surely, 2^100012220999 is an apocalyptic number.

100012220999 is a deficient number, since it is larger than the sum of its proper divisors (1265977561).

100012220999 is an equidigital number, since it uses as much as digits as its factorization.

100012220999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1265977560.

The product of its (nonzero) digits is 5832, while the sum is 35.

The spelling of 100012220999 in words is "one hundred billion, twelve million, two hundred twenty thousand, nine hundred ninety-nine".