1122520455 has 48 divisors (see below), whose sum is σ = 2354474304. Its totient is φ = 482964480.

The previous prime is 1122520439. The next prime is 1122520463. The reversal of 1122520455 is 5540252211.

It is not a de Polignac number, because 1122520455 - 2⁴ = 1122520439 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 99456 + ... + 110165.

It is an arithmetic number, because the mean of its divisors is an integer number (49051548).

Almost surely, 2^1122520455 is an apocalyptic number.

1122520455 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1122520455 is an abundant number, since it is smaller than the sum of its proper divisors (1231953849).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1122520455 is a wasteful number, since it uses less digits than its factorization.

1122520455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209656 (or 209653 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 27.

The square root of 1122520455 is about 33504.0363986192. The cubic root of 1122520455 is about 1039.2772514785.

Adding to 1122520455 its reverse (5540252211), we get a palindrome (6662772666).

The spelling of 1122520455 in words is "one billion, one hundred twenty-two million, five hundred twenty thousand, four hundred fifty-five".