20042422400402 has 8 divisors (see below), whose sum is σ = 30063658064700. Its totient is φ = 10021203045504.

The previous prime is 20042422400369. The next prime is 20042422400423. The reversal of 20042422400402 is 20400422424002.

It can be written as a sum of positive squares in 2 ways, for example, as 18446088701881 + 1596333698521 = 4294891^2 + 1263461^2 .

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

It is a super-2 number, since 2×20042422400402² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 308327 + ... + 6338762.

Almost surely, 2^{20042422400402} is an apocalyptic number.

20042422400402 is a deficient number, since it is larger than the sum of its proper divisors (10021235664298).

20042422400402 is a wasteful number, since it uses less digits than its factorization.

20042422400402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8154700.

The product of its (nonzero) digits is 8192, while the sum is 26.

Adding to 20042422400402 its reverse (20400422424002), we get a palindrome (40442844824404).

The spelling of 20042422400402 in words is "twenty trillion, forty-two billion, four hundred twenty-two million, four hundred thousand, four hundred two".