1220200111001 has 8 divisors (see below), whose sum is σ = 1222513119360. Its totient is φ = 1217889290992.

The previous prime is 1220200110971. The next prime is 1220200111003. The reversal of 1220200111001 is 1001110020221.

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 1220200111001 - 2³⁰ = 1219126369177 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1220200111003) 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, 571310 + ... + 1663368.

It is an arithmetic number, because the mean of its divisors is an integer number (152814139920).

Almost surely, 2^{1220200111001} is an apocalyptic number.

It is an amenable number.

1220200111001 is a deficient number, since it is larger than the sum of its proper divisors (2313008359).

1220200111001 is a wasteful number, since it uses less digits than its factorization.

1220200111001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1094175.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 1220200111001 its reverse (1001110020221), we get a palindrome (2221310131222).

The spelling of 1220200111001 in words is "one trillion, two hundred twenty billion, two hundred million, one hundred eleven thousand, one".