22412121 has 8 divisors (see below), whose sum is σ = 30690624. Its totient is φ = 14537520.

The previous prime is 22412107. The next prime is 22412123. The reversal of 22412121 is 12121422.

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

It is not a de Polignac number, because 22412121 - 2⁷ = 22411993 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 22412121.

It is not an unprimeable number, because it can be changed into a prime (22412123) 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, 100845 + ... + 101066.

It is an arithmetic number, because the mean of its divisors is an integer number (3836328).

Almost surely, 2^22412121 is an apocalyptic number.

It is an amenable number.

22412121 is a deficient number, since it is larger than the sum of its proper divisors (8278503).

22412121 is a wasteful number, since it uses less digits than its factorization.

22412121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201951.

The product of its digits is 64, while the sum is 15.

The square root of 22412121 is about 4734.1441676400. The cubic root of 22412121 is about 281.9427855356.

Adding to 22412121 its reverse (12121422), we get a palindrome (34533543).

The spelling of 22412121 in words is "twenty-two million, four hundred twelve thousand, one hundred twenty-one".