1201120010010 has 48 divisors (see below), whose sum is σ = 3123616265640. Its totient is φ = 320226439680.

The previous prime is 1201120009981. The next prime is 1201120010021. The reversal of 1201120010010 is 100100211021.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 577324912761 + 623795097249 = 759819^2 + 789807^2 .

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

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1201120009974 and 1201120010001.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1102875 + ... + 1902254.

Almost surely, 2^{1201120010010} is an apocalyptic number.

1201120010010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1201120010010 is an abundant number, since it is smaller than the sum of its proper divisors (1922496255630).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1201120010010 is a wasteful number, since it uses less digits than its factorization.

1201120010010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3009583 (or 3009580 counting only the distinct ones).

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

Adding to 1201120010010 its reverse (100100211021), we get a palindrome (1301220221031).

The spelling of 1201120010010 in words is "one trillion, two hundred one billion, one hundred twenty million, ten thousand, ten".