1220200222201 has 8 divisors (see below), whose sum is σ = 1238365433480. Its totient is φ = 1202074204032.

The previous prime is 1220200222193. The next prime is 1220200222229. The reversal of 1220200222201 is 1022220020221.

It can be written as a sum of positive squares in 4 ways, for example, as 50557972201 + 1169642250000 = 224851^2 + 1081500^2 .

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 1220200222201 - 2³ = 1220200222193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1220200222291) 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, 9735546 + ... + 9860083.

It is an arithmetic number, because the mean of its divisors is an integer number (154795679185).

Almost surely, 2^{1220200222201} is an apocalyptic number.

It is an amenable number.

1220200222201 is a deficient number, since it is larger than the sum of its proper divisors (18165211279).

1220200222201 is an equidigital number, since it uses as much as digits as its factorization.

1220200222201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19596555.

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 1220200222201 its reverse (1022220020221), we get a palindrome (2242420242422).

It can be divided in two parts, 1220200 and 222201, that added together give a square (1442401 = 1201²).

The spelling of 1220200222201 in words is "one trillion, two hundred twenty billion, two hundred million, two hundred twenty-two thousand, two hundred one".