22121301 has 32 divisors (see below), whose sum is σ = 33816960. Its totient is φ = 12773376.

The previous prime is 22121293. The next prime is 22121303. The reversal of 22121301 is 10312122.

It is not a de Polignac number, because 22121301 - 2³ = 22121293 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22121303) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 35545 + ... + 36161.

It is an arithmetic number, because the mean of its divisors is an integer number (1056780).

Almost surely, 2^22121301 is an apocalyptic number.

It is an amenable number.

22121301 is a deficient number, since it is larger than the sum of its proper divisors (11695659).

22121301 is a wasteful number, since it uses less digits than its factorization.

22121301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 693.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 22121301 is about 4703.3287148572. The cubic root of 22121301 is about 280.7179745765.

Adding to 22121301 its reverse (10312122), we get a palindrome (32433423).

It can be divided in two parts, 22121 and 301, that added together give a palindrome (22422).

The spelling of 22121301 in words is "twenty-two million, one hundred twenty-one thousand, three hundred one".