11221242354 has 36 divisors (see below), whose sum is σ = 28282113054. Its totient is φ = 3206068992.

The previous prime is 11221242311. The next prime is 11221242359. The reversal of 11221242354 is 45324212211.

11221242354 is a `hidden beast` number, since 11 + 221 + 2 + 423 + 5 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 6662967129 + 4558275225 = 81627^2 + 67515^2 .

It is a super-3 number, since 3×11221242354³ (a number of 31 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (11221242359) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 6360367 + ... + 6362130.

Almost surely, 2^11221242354 is an apocalyptic number.

11221242354 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

11221242354 is an abundant number, since it is smaller than the sum of its proper divisors (17060870700).

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

11221242354 is a wasteful number, since it uses less digits than its factorization.

11221242354 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12722519 (or 12722509 counting only the distinct ones).

The product of its digits is 3840, while the sum is 27.

Adding to 11221242354 its reverse (45324212211), we get a palindrome (56545454565).

The spelling of 11221242354 in words is "eleven billion, two hundred twenty-one million, two hundred forty-two thousand, three hundred fifty-four".