1201002220201 has 4 divisors (see below), whose sum is σ = 1372573965952. Its totient is φ = 1029430474452.

The previous prime is 1201002220189. The next prime is 1201002220247. The reversal of 1201002220201 is 1020222001021.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1201002220201 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1201002220801) 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, 85785872865 + ... + 85785872878.

It is an arithmetic number, because the mean of its divisors is an integer number (343143491488).

Almost surely, 2^{1201002220201} is an apocalyptic number.

It is an amenable number.

1201002220201 is a deficient number, since it is larger than the sum of its proper divisors (171571745751).

1201002220201 is an equidigital number, since it uses as much as digits as its factorization.

1201002220201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171571745750.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 1201002220201 its reverse (1020222001021), we get a palindrome (2221224221222).

The spelling of 1201002220201 in words is "one trillion, two hundred one billion, two million, two hundred twenty thousand, two hundred one".