120100211001 has 16 divisors (see below), whose sum is σ = 181283339520. Its totient is φ = 78556111920.

The previous prime is 120100210991. The next prime is 120100211027. The reversal of 120100211001 is 100112001021.

It is a happy number.

It is not a de Polignac number, because 120100211001 - 2²⁹ = 119563340089 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 (120100211201) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41962305 + ... + 41965166.

It is an arithmetic number, because the mean of its divisors is an integer number (11330208720).

Almost surely, 2^120100211001 is an apocalyptic number.

It is an amenable number.

120100211001 is a deficient number, since it is larger than the sum of its proper divisors (61183128519).

120100211001 is an equidigital number, since it uses as much as digits as its factorization.

120100211001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83927533 (or 83927527 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 120100211001 its reverse (100112001021), we get a palindrome (220212212022).

The spelling of 120100211001 in words is "one hundred twenty billion, one hundred million, two hundred eleven thousand, one".