1200122220101 has 32 divisors (see below), whose sum is σ = 1412393988096. Its totient is φ = 998333424000.

The previous prime is 1200122220083. The next prime is 1200122220151. The reversal of 1200122220101 is 1010222210021.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1200122220101 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1200122220151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 44882906 + ... + 44909636.

It is an arithmetic number, because the mean of its divisors is an integer number (44137312128).

Almost surely, 2^{1200122220101} is an apocalyptic number.

It is an amenable number.

1200122220101 is a deficient number, since it is larger than the sum of its proper divisors (212271767995).

1200122220101 is a wasteful number, since it uses less digits than its factorization.

1200122220101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27593.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 1200122220101 its reverse (1010222210021), we get a palindrome (2210344430122).

The spelling of 1200122220101 in words is "one trillion, two hundred billion, one hundred twenty-two million, two hundred twenty thousand, one hundred one".