1122205541 has 4 divisors (see below), whose sum is σ = 1124491584. Its totient is φ = 1119919500.

The previous prime is 1122205537. The next prime is 1122205543. The reversal of 1122205541 is 1455022211.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1455022211 = 10343 ⋅140677.

It is a cyclic number.

It is not a de Polignac number, because 1122205541 - 2² = 1122205537 is a prime.

It is a super-2 number, since 2×1122205541² = 2518690552502205362, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1122205543) 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, 1142285 + ... + 1143266.

It is an arithmetic number, because the mean of its divisors is an integer number (281122896).

Almost surely, 2^1122205541 is an apocalyptic number.

It is an amenable number.

1122205541 is a deficient number, since it is larger than the sum of its proper divisors (2286043).

1122205541 is an equidigital number, since it uses as much as digits as its factorization.

1122205541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2286042.

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

The square root of 1122205541 is about 33499.3364262637. The cubic root of 1122205541 is about 1039.1800554570.

Adding to 1122205541 its reverse (1455022211), we get a palindrome (2577227752).

The spelling of 1122205541 in words is "one billion, one hundred twenty-two million, two hundred five thousand, five hundred forty-one".