100311001221 has 8 divisors (see below), whose sum is σ = 134521112160. Its totient is φ = 66487445552.

The previous prime is 100311001207. The next prime is 100311001229. The reversal of 100311001221 is 122100113001.

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 100311001221 - 2¹⁰ = 100311000197 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 100311001197 and 100311001206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100311001229) 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, 96638211 + ... + 96639248.

It is an arithmetic number, because the mean of its divisors is an integer number (16815139020).

Almost surely, 2^100311001221 is an apocalyptic number.

It is an amenable number.

100311001221 is a deficient number, since it is larger than the sum of its proper divisors (34210110939).

100311001221 is a wasteful number, since it uses less digits than its factorization.

100311001221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193277635.

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

Adding to 100311001221 its reverse (122100113001), we get a palindrome (222411114222).

The spelling of 100311001221 in words is "one hundred billion, three hundred eleven million, one thousand, two hundred twenty-one".