1101142422 has 48 divisors (see below), whose sum is σ = 2466130992. Its totient is φ = 354818880.

The previous prime is 1101142403. The next prime is 1101142433. The reversal of 1101142422 is 2242411011.

1101142422 is a `hidden beast` number, since 1 + 101 + 142 + 422 = 666.

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

It is a junction number, because it is equal to n+sod(n) for n = 1101142395 and 1101142404.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 99297 + ... + 109827.

It is an arithmetic number, because the mean of its divisors is an integer number (51377729).

Almost surely, 2^1101142422 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1101142422, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1233065496).

1101142422 is an abundant number, since it is smaller than the sum of its proper divisors (1364988570).

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

1101142422 is a wasteful number, since it uses less digits than its factorization.

1101142422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10733 (or 10730 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

The square root of 1101142422 is about 33183.4660938245. The cubic root of 1101142422 is about 1032.6373553017.

Adding to 1101142422 its reverse (2242411011), we get a palindrome (3343553433).

The spelling of 1101142422 in words is "one billion, one hundred one million, one hundred forty-two thousand, four hundred twenty-two".