1201122356 has 12 divisors (see below), whose sum is σ = 2402244768. Its totient is φ = 514766712.

The previous prime is 1201122341. The next prime is 1201122367. The reversal of 1201122356 is 6532211021.

1201122356 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21448586 + ... + 21448641.

It is an arithmetic number, because the mean of its divisors is an integer number (200187064).

Almost surely, 2^1201122356 is an apocalyptic number.

It is an amenable number.

1201122356 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1201122356 is a wasteful number, since it uses less digits than its factorization.

1201122356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42897238 (or 42897236 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 1201122356 is about 34657.2121787082. The cubic root of 1201122356 is about 1062.9897662874.

Adding to 1201122356 its reverse (6532211021), we get a palindrome (7733333377).

The spelling of 1201122356 in words is "one billion, two hundred one million, one hundred twenty-two thousand, three hundred fifty-six".