120101211 has 20 divisors (see below), whose sum is σ = 179969592. Its totient is φ = 79818048.

The previous prime is 120101203. The next prime is 120101227. The reversal of 120101211 is 112101021.

It is a happy number.

It is not a de Polignac number, because 120101211 - 2³ = 120101203 is a prime.

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

It is a junction number, because it is equal to n+sod(n) for n = 120101193 and 120101202.

It is not an unprimeable number, because it can be changed into a prime (120101231) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 25971 + ... + 30243.

Almost surely, 2^120101211 is an apocalyptic number.

120101211 is a deficient number, since it is larger than the sum of its proper divisors (59868381).

120101211 is an equidigital number, since it uses as much as digits as its factorization.

120101211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4632 (or 4623 counting only the distinct ones).

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

The square root of 120101211 is about 10959.0698054169. The cubic root of 120101211 is about 493.3810468927.

Adding to 120101211 its reverse (112101021), we get a palindrome (232202232).

The spelling of 120101211 in words is "one hundred twenty million, one hundred one thousand, two hundred eleven".