1122200001 has 72 divisors (see below), whose sum is σ = 1851682560. Its totient is φ = 675835488.

The previous prime is 1122199957. The next prime is 1122200029. The reversal of 1122200001 is 1000022211.

It is not a de Polignac number, because 1122200001 - 2¹³ = 1122191809 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1122200041) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 5032176 + ... + 5032398.

Almost surely, 2^1122200001 is an apocalyptic number.

It is an amenable number.

1122200001 is a deficient number, since it is larger than the sum of its proper divisors (729482559).

1122200001 is an frugal number, since it uses more digits than its factorization.

1122200001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 319 (or 298 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

The square root of 1122200001 is about 33499.2537379566. The cubic root of 1122200001 is about 1039.1783454117.

Adding to 1122200001 its reverse (1000022211), we get a palindrome (2122222212).

The spelling of 1122200001 in words is "one billion, one hundred twenty-two million, two hundred thousand, one".