1201122002011 has 4 divisors (see below), whose sum is σ = 1201126359024. Its totient is φ = 1201117645000.

The previous prime is 1201122001967. The next prime is 1201122002027. The reversal of 1201122002011 is 1102002211021.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1201122002011 - 2³¹ = 1198974518363 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1201122001982 and 1201122002000.

It is not an unprimeable number, because it can be changed into a prime (1201122002071) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1734880 + ... + 2326381.

It is an arithmetic number, because the mean of its divisors is an integer number (300281589756).

Almost surely, 2^{1201122002011} is an apocalyptic number.

1201122002011 is a deficient number, since it is larger than the sum of its proper divisors (4357013).

1201122002011 is an equidigital number, since it uses as much as digits as its factorization.

1201122002011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4357012.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 1201122002011 its reverse (1102002211021), we get a palindrome (2303124213032).

The spelling of 1201122002011 in words is "one trillion, two hundred one billion, one hundred twenty-two million, two thousand, eleven".