1220200111191 has 8 divisors (see below), whose sum is σ = 1627443345024. Its totient is φ = 813211809080.

The previous prime is 1220200111121. The next prime is 1220200111223. The reversal of 1220200111191 is 1911110020221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1220200111191 - 2¹⁴ = 1220200094807 is a prime.

It is a super-2 number, since 2×1220200111191² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220200111121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63721761 + ... + 63740906.

It is an arithmetic number, because the mean of its divisors is an integer number (203430418128).

Almost surely, 2^{1220200111191} is an apocalyptic number.

1220200111191 is a deficient number, since it is larger than the sum of its proper divisors (407243233833).

1220200111191 is a wasteful number, since it uses less digits than its factorization.

1220200111191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127465861.

The product of its (nonzero) digits is 72, while the sum is 21.

The spelling of 1220200111191 in words is "one trillion, two hundred twenty billion, two hundred million, one hundred eleven thousand, one hundred ninety-one".