1220111210201 has 32 divisors (see below), whose sum is σ = 1432832163840. Its totient is φ = 1029847097664.

The previous prime is 1220111210183. The next prime is 1220111210207. The reversal of 1220111210201 is 1020121110221.

It is not a de Polignac number, because 1220111210201 - 2¹⁸ = 1220110948057 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1220111210207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 405281 + ... + 1613838.

It is an arithmetic number, because the mean of its divisors is an integer number (44776005120).

Almost surely, 2^{1220111210201} is an apocalyptic number.

It is an amenable number.

1220111210201 is a deficient number, since it is larger than the sum of its proper divisors (212720953639).

1220111210201 is a wasteful number, since it uses less digits than its factorization.

1220111210201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2019245.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 1220111210201 its reverse (1020121110221), we get a palindrome (2240232320422).

The spelling of 1220111210201 in words is "one trillion, two hundred twenty billion, one hundred eleven million, two hundred ten thousand, two hundred one".