21122114 has 16 divisors (see below), whose sum is σ = 34282752. Its totient is φ = 9702288.

The previous prime is 21122111. The next prime is 21122161. The reversal of 21122114 is 41122112.

It is a happy number.

It is a super-2 number, since 2×21122114² = 892287399657992, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (21122111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3977 + ... + 7619.

It is an arithmetic number, because the mean of its divisors is an integer number (2142672).

Almost surely, 2^21122114 is an apocalyptic number.

21122114 is a deficient number, since it is larger than the sum of its proper divisors (13160638).

21122114 is a wasteful number, since it uses less digits than its factorization.

21122114 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3881.

The product of its digits is 32, while the sum is 14.

The square root of 21122114 is about 4595.8801115782. The cubic root of 21122114 is about 276.4261515157.

Adding to 21122114 its reverse (41122112), we get a palindrome (62244226).

The spelling of 21122114 in words is "twenty-one million, one hundred twenty-two thousand, one hundred fourteen".