1220200012001 has 16 divisors (see below), whose sum is σ = 1248663340800. Its totient is φ = 1191842762880.

The previous prime is 1220200011983. The next prime is 1220200012021. The reversal of 1220200012001 is 1002100020221.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1220200012001 - 2¹⁴ = 1220199995617 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1220200012021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 71352350 + ... + 71369448.

It is an arithmetic number, because the mean of its divisors is an integer number (78041458800).

Almost surely, 2^{1220200012001} is an apocalyptic number.

It is an amenable number.

1220200012001 is a deficient number, since it is larger than the sum of its proper divisors (28463328799).

1220200012001 is a wasteful number, since it uses less digits than its factorization.

1220200012001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20104.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 1220200012001 its reverse (1002100020221), we get a palindrome (2222300032222).

The spelling of 1220200012001 in words is "one trillion, two hundred twenty billion, two hundred million, twelve thousand, one".