22401151 has 4 divisors (see below), whose sum is σ = 22922152. Its totient is φ = 21880152.

The previous prime is 22401143. The next prime is 22401157. The reversal of 22401151 is 15110422.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15110422 = 2 ⋅7555211.

It is a cyclic number.

It is not a de Polignac number, because 22401151 - 2³ = 22401143 is a prime.

It is a super-2 number, since 2×22401151² = 1003623132249602, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22401157) 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, 260436 + ... + 260521.

It is an arithmetic number, because the mean of its divisors is an integer number (5730538).

Almost surely, 2^22401151 is an apocalyptic number.

22401151 is a deficient number, since it is larger than the sum of its proper divisors (521001).

22401151 is an equidigital number, since it uses as much as digits as its factorization.

22401151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 521000.

The product of its (nonzero) digits is 80, while the sum is 16.

The square root of 22401151 is about 4732.9854214861. The cubic root of 22401151 is about 281.8967774385.

Adding to 22401151 its reverse (15110422), we get a palindrome (37511573).

The spelling of 22401151 in words is "twenty-two million, four hundred one thousand, one hundred fifty-one".