22100120001 has 16 divisors (see below), whose sum is σ = 32815516800. Its totient is φ = 14699844144.

The previous prime is 22100119981. The next prime is 22100120023. The reversal of 22100120001 is 10002100122.

It is not a de Polignac number, because 22100120001 - 2¹⁷ = 22099988929 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (22100120501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 920406 + ... + 944111.

It is an arithmetic number, because the mean of its divisors is an integer number (2050969800).

Almost surely, 2^22100120001 is an apocalyptic number.

It is an amenable number.

22100120001 is a deficient number, since it is larger than the sum of its proper divisors (10715396799).

22100120001 is a wasteful number, since it uses less digits than its factorization.

22100120001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1864965 (or 1864959 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 22100120001 its reverse (10002100122), we get a palindrome (32102220123).

The spelling of 22100120001 in words is "twenty-two billion, one hundred million, one hundred twenty thousand, one".