11775221002 has 16 divisors (see below), whose sum is σ = 17872650432. Its totient is φ = 5817916800.

The previous prime is 11775220997. The next prime is 11775221011. The reversal of 11775221002 is 20012257711.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35002 + ... + 157402.

It is an arithmetic number, because the mean of its divisors is an integer number (1117040652).

Almost surely, 2^11775221002 is an apocalyptic number.

11775221002 is a deficient number, since it is larger than the sum of its proper divisors (6097429430).

11775221002 is a wasteful number, since it uses less digits than its factorization.

11775221002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122973.

The product of its (nonzero) digits is 1960, while the sum is 28.

Adding to 11775221002 its reverse (20012257711), we get a palindrome (31787478713).

The spelling of 11775221002 in words is "eleven billion, seven hundred seventy-five million, two hundred twenty-one thousand, two".