11022555142 has 4 divisors (see below), whose sum is σ = 16533832716. Its totient is φ = 5511277570.

The previous prime is 11022555119. The next prime is 11022555143. The reversal of 11022555142 is 24155522011.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 11022555142.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11022555143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2755638784 + ... + 2755638787.

It is an arithmetic number, because the mean of its divisors is an integer number (4133458179).

Almost surely, 2^11022555142 is an apocalyptic number.

11022555142 is a deficient number, since it is larger than the sum of its proper divisors (5511277574).

11022555142 is an equidigital number, since it uses as much as digits as its factorization.

11022555142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5511277573.

The product of its (nonzero) digits is 4000, while the sum is 28.

The spelling of 11022555142 in words is "eleven billion, twenty-two million, five hundred fifty-five thousand, one hundred forty-two".