1122051156 has 48 divisors (see below), whose sum is σ = 2777026560. Its totient is φ = 351617760.

The previous prime is 1122051143. The next prime is 1122051157. The reversal of 1122051156 is 6511502211.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1122051157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11085 + ... + 48651.

It is an arithmetic number, because the mean of its divisors is an integer number (57854720).

Almost surely, 2^1122051156 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1122051156, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1388513280).

1122051156 is an abundant number, since it is smaller than the sum of its proper divisors (1654975404).

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

1122051156 is a wasteful number, since it uses less digits than its factorization.

1122051156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37724 (or 37722 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 24.

The square root of 1122051156 is about 33497.0320476307. The cubic root of 1122051156 is about 1039.1323989554.

Adding to 1122051156 its reverse (6511502211), we get a palindrome (7633553367).

The spelling of 1122051156 in words is "one billion, one hundred twenty-two million, fifty-one thousand, one hundred fifty-six".