1122402551 has 4 divisors (see below), whose sum is σ = 1122691152. Its totient is φ = 1122113952.

The previous prime is 1122402493. The next prime is 1122402557. The reversal of 1122402551 is 1552042211.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1552042211 = 929 ⋅1670659.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1122402551 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1122402557) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 138386 + ... + 146271.

It is an arithmetic number, because the mean of its divisors is an integer number (280672788).

Almost surely, 2^1122402551 is an apocalyptic number.

1122402551 is a deficient number, since it is larger than the sum of its proper divisors (288601).

1122402551 is an equidigital number, since it uses as much as digits as its factorization.

1122402551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 288600.

The product of its (nonzero) digits is 800, while the sum is 23.

The square root of 1122402551 is about 33502.2768032264. The cubic root of 1122402551 is about 1039.2408633560.

Adding to 1122402551 its reverse (1552042211), we get a palindrome (2674444762).

The spelling of 1122402551 in words is "one billion, one hundred twenty-two million, four hundred two thousand, five hundred fifty-one".