120100022001 has 80 divisors (see below), whose sum is σ = 194911833600. Its totient is φ = 73468467072.

The previous prime is 120100021969. The next prime is 120100022027. The reversal of 120100022001 is 100220001021.

It is not a de Polignac number, because 120100022001 - 2⁵ = 120100021969 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 (120100022201) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 8475160 + ... + 8489318.

It is an arithmetic number, because the mean of its divisors is an integer number (2436397920).

Almost surely, 2^120100022001 is an apocalyptic number.

It is an amenable number.

120100022001 is a deficient number, since it is larger than the sum of its proper divisors (74811811599).

120100022001 is a wasteful number, since it uses less digits than its factorization.

120100022001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14380 (or 14371 counting only the distinct ones).

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

Adding to 120100022001 its reverse (100220001021), we get a palindrome (220320023022).

The spelling of 120100022001 in words is "one hundred twenty billion, one hundred million, twenty-two thousand, one".