120100201011 has 80 divisors (see below), whose sum is σ = 209160483840. Its totient is φ = 67261933440.

The previous prime is 120100200977. The next prime is 120100201043. The reversal of 120100201011 is 110102001021.

It is a happy number.

It is not a de Polignac number, because 120100201011 - 2¹³ = 120100192819 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 = 120100200984 and 120100201002.

It is not an unprimeable number, because it can be changed into a prime (120100201411) 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, 6126856 + ... + 6146426.

It is an arithmetic number, because the mean of its divisors is an integer number (2614506048).

Almost surely, 2^120100201011 is an apocalyptic number.

120100201011 is a deficient number, since it is larger than the sum of its proper divisors (89060282829).

120100201011 is a wasteful number, since it uses less digits than its factorization.

120100201011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19806 (or 19797 counting only the distinct ones).

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

Adding to 120100201011 its reverse (110102001021), we get a palindrome (230202202032).

The spelling of 120100201011 in words is "one hundred twenty billion, one hundred million, two hundred one thousand, eleven".