22101525442 has 8 divisors (see below), whose sum is σ = 33777803196. Its totient is φ = 10842257712.

The previous prime is 22101525421. The next prime is 22101525449. The reversal of 22101525442 is 24452510122.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 20652276681 + 1449248761 = 143709^2 + 38069^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 22101525442.

It is not an unprimeable number, because it can be changed into a prime (22101525449) 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, 104252373 + ... + 104252584.

Almost surely, 2^22101525442 is an apocalyptic number.

22101525442 is a deficient number, since it is larger than the sum of its proper divisors (11676277754).

22101525442 is a wasteful number, since it uses less digits than its factorization.

22101525442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208505012.

The product of its (nonzero) digits is 6400, while the sum is 28.

The spelling of 22101525442 in words is "twenty-two billion, one hundred one million, five hundred twenty-five thousand, four hundred forty-two".