21112200022 has 8 divisors (see below), whose sum is σ = 31673715336. Its totient is φ = 10554294912.

The previous prime is 21112200019. The next prime is 21112200029. The reversal of 21112200022 is 22000221112.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 21112199975 and 21112200011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21112200029) 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, 887883 + ... + 911350.

It is an arithmetic number, because the mean of its divisors is an integer number (3959214417).

Almost surely, 2^21112200022 is an apocalyptic number.

21112200022 is a deficient number, since it is larger than the sum of its proper divisors (10561515314).

21112200022 is a wasteful number, since it uses less digits than its factorization.

21112200022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1805102.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 21112200022 its reverse (22000221112), we get a palindrome (43112421134).

The spelling of 21112200022 in words is "twenty-one billion, one hundred twelve million, two hundred thousand, twenty-two".