21926122 has 8 divisors (see below), whose sum is σ = 32995872. Its totient is φ = 10927500.

The previous prime is 21926077. The next prime is 21926123. The reversal of 21926122 is 22162912.

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

It is not an unprimeable number, because it can be changed into a prime (21926123) 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, 17004 + ... + 18247.

It is an arithmetic number, because the mean of its divisors is an integer number (4124484).

Almost surely, 2^21926122 is an apocalyptic number.

21926122 is a deficient number, since it is larger than the sum of its proper divisors (11069750).

21926122 is a wasteful number, since it uses less digits than its factorization.

21926122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35564.

The product of its digits is 864, while the sum is 25.

The square root of 21926122 is about 4682.5337158423. The cubic root of 21926122 is about 279.8899312271.

The spelling of 21926122 in words is "twenty-one million, nine hundred twenty-six thousand, one hundred twenty-two".