20112420400022 has 4 divisors (see below), whose sum is σ = 30168630600036. Its totient is φ = 10056210200010.

The previous prime is 20112420400003. The next prime is 20112420400069. The reversal of 20112420400022 is 22000402421102.

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

It is a super-2 number, since 2×20112420400022² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20112420399967 and 20112420400003.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5028105100004 + ... + 5028105100007.

It is an arithmetic number, because the mean of its divisors is an integer number (7542157650009).

Almost surely, 2^{20112420400022} is an apocalyptic number.

20112420400022 is a deficient number, since it is larger than the sum of its proper divisors (10056210200014).

20112420400022 is a wasteful number, since it uses less digits than its factorization.

20112420400022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10056210200013.

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 20112420400022 its reverse (22000402421102), we get a palindrome (42112822821124).

The spelling of 20112420400022 in words is "twenty trillion, one hundred twelve billion, four hundred twenty million, four hundred thousand, twenty-two".