21951114 has 32 divisors (see below), whose sum is σ = 46702656. Its totient is φ = 6854400.

The previous prime is 21951107. The next prime is 21951121. The reversal of 21951114 is 41115912.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (21951107) and next prime (21951121).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30964 + ... + 31664.

It is an arithmetic number, because the mean of its divisors is an integer number (1459458).

Almost surely, 2^21951114 is an apocalyptic number.

21951114 is an abundant number, since it is smaller than the sum of its proper divisors (24751542).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21951114 is a wasteful number, since it uses less digits than its factorization.

21951114 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1030.

The product of its digits is 360, while the sum is 24.

The square root of 21951114 is about 4685.2015965164. The cubic root of 21951114 is about 279.9962329425.

The spelling of 21951114 in words is "twenty-one million, nine hundred fifty-one thousand, one hundred fourteen".