1222520201 has 16 divisors (see below), whose sum is σ = 1530368640. Its totient is φ = 952224000.

The previous prime is 1222520177. The next prime is 1222520227. The reversal of 1222520201 is 1020252221.

It is a de Polignac number, because none of the positive numbers 2^k-1222520201 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1222520201.

It is not an unprimeable number, because it can be changed into a prime (1222520231) 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, 173675 + ... + 180576.

It is an arithmetic number, because the mean of its divisors is an integer number (95648040).

Almost surely, 2^1222520201 is an apocalyptic number.

It is an amenable number.

1222520201 is a deficient number, since it is larger than the sum of its proper divisors (307848439).

1222520201 is a wasteful number, since it uses less digits than its factorization.

1222520201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 354304.

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 1222520201 is about 34964.5563535418. The cubic root of 1222520201 is about 1069.2649917710.

Adding to 1222520201 its reverse (1020252221), we get a palindrome (2242772422).

The spelling of 1222520201 in words is "one billion, two hundred twenty-two million, five hundred twenty thousand, two hundred one".