120211010109 has 24 divisors (see below), whose sum is σ = 176355833472. Its totient is φ = 78893223360.

The previous prime is 120211010107. The next prime is 120211010189. The reversal of 120211010109 is 901010112021.

It is a happy number.

It is not a de Polignac number, because 120211010109 - 2¹ = 120211010107 is a prime.

It is a super-2 number, since 2×120211010109² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 120211010091 and 120211010100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120211010107) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 76437 + ... + 496250.

It is an arithmetic number, because the mean of its divisors is an integer number (7348159728).

Almost surely, 2^120211010109 is an apocalyptic number.

It is an amenable number.

120211010109 is a deficient number, since it is larger than the sum of its proper divisors (56144823363).

120211010109 is a wasteful number, since it uses less digits than its factorization.

120211010109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 573057 (or 573054 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 18.

The spelling of 120211010109 in words is "one hundred twenty billion, two hundred eleven million, ten thousand, one hundred nine".