1157122211050 has 48 divisors (see below), whose sum is σ = 2418578951040. Its totient is φ = 408669243840.

The previous prime is 1157122211033. The next prime is 1157122211053. The reversal of 1157122211050 is 501122217511.

It is a super-2 number, since 2×1157122211050² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1157122211053) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 38684790 + ... + 38714689.

It is an arithmetic number, because the mean of its divisors is an integer number (50387061480).

Almost surely, 2^{1157122211050} is an apocalyptic number.

1157122211050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1157122211050 is an abundant number, since it is smaller than the sum of its proper divisors (1261456739990).

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

1157122211050 is a wasteful number, since it uses less digits than its factorization.

1157122211050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77399527 (or 77399522 counting only the distinct ones).

The product of its (nonzero) digits is 1400, while the sum is 28.

Adding to 1157122211050 its reverse (501122217511), we get a palindrome (1658244428561).

The spelling of 1157122211050 in words is "one trillion, one hundred fifty-seven billion, one hundred twenty-two million, two hundred eleven thousand, fifty".