22011001152 has 56 divisors (see below), whose sum is σ = 66557078976. Its totient is φ = 6288857088.

The previous prime is 22011001147. The next prime is 22011001153. The reversal of 22011001152 is 25110011022.

It is a tau number, because it is divible by the number of its divisors (56).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22011001153) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8187273 + ... + 8189960.

Almost surely, 2^22011001152 is an apocalyptic number.

It is an amenable number.

22011001152 is an abundant number, since it is smaller than the sum of its proper divisors (44546077824).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22011001152 is a wasteful number, since it uses less digits than its factorization.

22011001152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16377255 (or 16377245 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 15.

Adding to 22011001152 its reverse (25110011022), we get a palindrome (47121012174).

The spelling of 22011001152 in words is "twenty-two billion, eleven million, one thousand, one hundred fifty-two".