1201220202001 has 8 divisors (see below), whose sum is σ = 1204356463200. Its totient is φ = 1198084641600.

The previous prime is 1201220201959. The next prime is 1201220202029. The reversal of 1201220202001 is 1002020221021.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1201220202001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1201220202101) 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, 3349770 + ... + 3690988.

It is an arithmetic number, because the mean of its divisors is an integer number (150544557900).

Almost surely, 2^{1201220202001} is an apocalyptic number.

It is an amenable number.

1201220202001 is a deficient number, since it is larger than the sum of its proper divisors (3136261199).

1201220202001 is an equidigital number, since it uses as much as digits as its factorization.

1201220202001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 350399.

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

Adding to 1201220202001 its reverse (1002020221021), we get a palindrome (2203240423022).

The spelling of 1201220202001 in words is "one trillion, two hundred one billion, two hundred twenty million, two hundred two thousand, one".