22018373401 has 8 divisors (see below), whose sum is σ = 22984179464. Its totient is φ = 21072078720.

The previous prime is 22018373393. The next prime is 22018373411. The reversal of 22018373401 is 10437381022.

It can be written as a sum of positive squares in 4 ways, for example, as 1969229376 + 20049144025 = 44376^2 + 141595^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 22018373401 - 2³ = 22018373393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22018373411) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4875540 + ... + 4880053.

It is an arithmetic number, because the mean of its divisors is an integer number (2873022433).

Almost surely, 2^22018373401 is an apocalyptic number.

It is an amenable number.

22018373401 is a deficient number, since it is larger than the sum of its proper divisors (965806063).

22018373401 is an equidigital number, since it uses as much as digits as its factorization.

22018373401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9755691.

The product of its (nonzero) digits is 8064, while the sum is 31.

The spelling of 22018373401 in words is "twenty-two billion, eighteen million, three hundred seventy-three thousand, four hundred one".