1220200002111 has 4 divisors (see below), whose sum is σ = 1626933336152. Its totient is φ = 813466668072.

The previous prime is 1220200002107. The next prime is 1220200002137. The reversal of 1220200002111 is 1112000020221.

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

It is not a de Polignac number, because 1220200002111 - 2² = 1220200002107 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220200002011) 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, 203366667016 + ... + 203366667021.

It is an arithmetic number, because the mean of its divisors is an integer number (406733334038).

Almost surely, 2^{1220200002111} is an apocalyptic number.

1220200002111 is a deficient number, since it is larger than the sum of its proper divisors (406733334041).

1220200002111 is an equidigital number, since it uses as much as digits as its factorization.

1220200002111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 406733334040.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 1220200002111 its reverse (1112000020221), we get a palindrome (2332200022332).

The spelling of 1220200002111 in words is "one trillion, two hundred twenty billion, two hundred million, two thousand, one hundred eleven".