22401166012 has 12 divisors (see below), whose sum is σ = 39341551536. Its totient is φ = 11160722720.

The previous prime is 22401165979. The next prime is 22401166013. The reversal of 22401166012 is 21066110422.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22401166013) 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, 9963808 + ... + 9966055.

It is an arithmetic number, because the mean of its divisors is an integer number (3278462628).

Almost surely, 2^22401166012 is an apocalyptic number.

It is an amenable number.

22401166012 is a deficient number, since it is larger than the sum of its proper divisors (16940385524).

22401166012 is a wasteful number, since it uses less digits than its factorization.

22401166012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19930148 (or 19930146 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 25.

Adding to 22401166012 its reverse (21066110422), we get a palindrome (43467276434).

The spelling of 22401166012 in words is "twenty-two billion, four hundred one million, one hundred sixty-six thousand, twelve".