1220001122201 has 8 divisors (see below), whose sum is σ = 1284970283520. Its totient is φ = 1155107818512.

The previous prime is 1220001122189. The next prime is 1220001122227. The reversal of 1220001122201 is 1022211000221.

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-1220001122201 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 (1220001122251) 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, 18931385 + ... + 18995718.

It is an arithmetic number, because the mean of its divisors is an integer number (160621285440).

Almost surely, 2^{1220001122201} is an apocalyptic number.

It is an amenable number.

1220001122201 is a deficient number, since it is larger than the sum of its proper divisors (64969161319).

1220001122201 is a wasteful number, since it uses less digits than its factorization.

1220001122201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37928815.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 1220001122201 its reverse (1022211000221), we get a palindrome (2242212122422).

The spelling of 1220001122201 in words is "one trillion, two hundred twenty billion, one million, one hundred twenty-two thousand, two hundred one".