11221555342 has 8 divisors (see below), whose sum is σ = 16836263136. Its totient is φ = 5609467632.

The previous prime is 11221555339. The next prime is 11221555349. The reversal of 11221555342 is 24355512211.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×11221555342³ (a number of 31 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11221555349) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 644278 + ... + 661465.

It is an arithmetic number, because the mean of its divisors is an integer number (2104532892).

Almost surely, 2^11221555342 is an apocalyptic number.

11221555342 is a deficient number, since it is larger than the sum of its proper divisors (5614707794).

11221555342 is a wasteful number, since it uses less digits than its factorization.

11221555342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1310042.

The product of its digits is 12000, while the sum is 31.

The spelling of 11221555342 in words is "eleven billion, two hundred twenty-one million, five hundred fifty-five thousand, three hundred forty-two".