22022387378 has 4 divisors (see below), whose sum is σ = 33033581070. Its totient is φ = 11011193688.

The previous prime is 22022387357. The next prime is 22022387389. The reversal of 22022387378 is 87378322022.

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

It can be written as a sum of positive squares in only one way, i.e., 17493501169 + 4528886209 = 132263^2 + 67297^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5505596843 + ... + 5505596846.

Almost surely, 2^22022387378 is an apocalyptic number.

22022387378 is a deficient number, since it is larger than the sum of its proper divisors (11011193692).

22022387378 is a wasteful number, since it uses less digits than its factorization.

22022387378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11011193691.

The product of its (nonzero) digits is 451584, while the sum is 44.

The spelling of 22022387378 in words is "twenty-two billion, twenty-two million, three hundred eighty-seven thousand, three hundred seventy-eight".