21829612222 has 8 divisors (see below), whose sum is σ = 35721183672. Its totient is φ = 9922551000.

The previous prime is 21829612199. The next prime is 21829612223. The reversal of 21829612222 is 22221692812.

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

It is a super-3 number, since 3×21829612222³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21829612223) 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, 496127529 + ... + 496127572.

It is an arithmetic number, because the mean of its divisors is an integer number (4465147959).

Almost surely, 2^21829612222 is an apocalyptic number.

21829612222 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

21829612222 is a deficient number, since it is larger than the sum of its proper divisors (13891571450).

21829612222 is a wasteful number, since it uses less digits than its factorization.

21829612222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 992255114.

The product of its digits is 27648, while the sum is 37.

The spelling of 21829612222 in words is "twenty-one billion, eight hundred twenty-nine million, six hundred twelve thousand, two hundred twenty-two".