1122400001 has 2 divisors, whose sum is σ = 1122400002. Its totient is φ = 1122400000.

The previous prime is 1122399973. The next prime is 1122400003. The reversal of 1122400001 is 1000042211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 895445776 + 226954225 = 29924^2 + 15065^2 .

It is a cyclic number.

It is not a de Polignac number, because 1122400001 - 2¹⁴ = 1122383617 is a prime.

Together with 1122400003, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1122400003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 561200000 + 561200001.

It is an arithmetic number, because the mean of its divisors is an integer number (561200001).

Almost surely, 2^1122400001 is an apocalyptic number.

It is an amenable number.

1122400001 is a deficient number, since it is larger than the sum of its proper divisors (1).

1122400001 is an equidigital number, since it uses as much as digits as its factorization.

1122400001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 1122400001 is about 33502.2387460898. The cubic root of 1122400001 is about 1039.2400763341.

Adding to 1122400001 its reverse (1000042211), we get a palindrome (2122442212).

The spelling of 1122400001 in words is "one billion, one hundred twenty-two million, four hundred thousand, one".