1222323201 has 48 divisors (see below), whose sum is σ = 2059005312. Its totient is φ = 691257600.

The previous prime is 1222323199. The next prime is 1222323209. The reversal of 1222323201 is 1023232221.

It is not a de Polignac number, because 1222323201 - 2¹ = 1222323199 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1222323209) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 86811 + ... + 99903.

It is an arithmetic number, because the mean of its divisors is an integer number (42895944).

Almost surely, 2^1222323201 is an apocalyptic number.

1222323201 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1222323201 is a deficient number, since it is larger than the sum of its proper divisors (836682111).

1222323201 is a wasteful number, since it uses less digits than its factorization.

1222323201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13174 (or 13171 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 1222323201 is about 34961.7391014806. The cubic root of 1222323201 is about 1069.2075539965.

Adding to 1222323201 its reverse (1023232221), we get a palindrome (2245555422).

It can be divided in two parts, 1222 and 323201, that added together give a palindrome (324423).

The spelling of 1222323201 in words is "one billion, two hundred twenty-two million, three hundred twenty-three thousand, two hundred one".