120211101 has 32 divisors (see below), whose sum is σ = 186193920. Its totient is φ = 76576752.

The previous prime is 120211079. The next prime is 120211103. The reversal of 120211101 is 101112021.

It is a happy number.

It is not a de Polignac number, because 120211101 - 2²¹ = 118113949 is a prime.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120211103) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 53466 + ... + 55668.

It is an arithmetic number, because the mean of its divisors is an integer number (5818560).

Almost surely, 2^120211101 is an apocalyptic number.

It is an amenable number.

120211101 is a deficient number, since it is larger than the sum of its proper divisors (65982819).

120211101 is a wasteful number, since it uses less digits than its factorization.

120211101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2302 (or 2296 counting only the distinct ones).

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

The square root of 120211101 is about 10964.0823145396. The cubic root of 120211101 is about 493.5314786694.

Adding to 120211101 its reverse (101112021), we get a palindrome (221323122).

The spelling of 120211101 in words is "one hundred twenty million, two hundred eleven thousand, one hundred one".