11101121442 has 40 divisors (see below), whose sum is σ = 25956254016. Its totient is φ = 3539486808.

The previous prime is 11101121441. The next prime is 11101121491. The reversal of 11101121442 is 24412110111.

11101121442 is a `hidden beast` number, since 1 + 1 + 101 + 121 + 442 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (11101121441) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1485958 + ... + 1493409.

Almost surely, 2^11101121442 is an apocalyptic number.

11101121442 is an abundant number, since it is smaller than the sum of its proper divisors (14855132574).

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

11101121442 is a wasteful number, since it uses less digits than its factorization.

11101121442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2979404 (or 2979395 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 11101121442 its reverse (24412110111), we get a palindrome (35513231553).

The spelling of 11101121442 in words is "eleven billion, one hundred one million, one hundred twenty-one thousand, four hundred forty-two".