22121112401 has 16 divisors (see below), whose sum is σ = 23166996480. Its totient is φ = 21096495360.

The previous prime is 22121112389. The next prime is 22121112427. The reversal of 22121112401 is 10421112122.

It is a cyclic number.

It is not a de Polignac number, because 22121112401 - 2²² = 22116918097 is a prime.

It is a super-2 number, since 2×22121112401² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22121112401.

It is not an unprimeable number, because it can be changed into a prime (22121112001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3253061 + ... + 3259853.

It is an arithmetic number, because the mean of its divisors is an integer number (1447937280).

Almost surely, 2^22121112401 is an apocalyptic number.

It is an amenable number.

22121112401 is a deficient number, since it is larger than the sum of its proper divisors (1045884079).

22121112401 is a wasteful number, since it uses less digits than its factorization.

22121112401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8336.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 22121112401 its reverse (10421112122), we get a palindrome (32542224523).

The spelling of 22121112401 in words is "twenty-two billion, one hundred twenty-one million, one hundred twelve thousand, four hundred one".