22061232401 has 16 divisors (see below), whose sum is σ = 25160857344. Its totient is φ = 19162462464.

The previous prime is 22061232397. The next prime is 22061232449. The reversal of 22061232401 is 10423216022.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 22061232401 - 2² = 22061232397 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22061232461) 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, 1985006 + ... + 1996088.

It is an arithmetic number, because the mean of its divisors is an integer number (1572553584).

Almost surely, 2^22061232401 is an apocalyptic number.

It is an amenable number.

22061232401 is a deficient number, since it is larger than the sum of its proper divisors (3099624943).

22061232401 is a wasteful number, since it uses less digits than its factorization.

22061232401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20120.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 22061232401 its reverse (10423216022), we get a palindrome (32484448423).

The spelling of 22061232401 in words is "twenty-two billion, sixty-one million, two hundred thirty-two thousand, four hundred one".