22211450501200 has 120 divisors (see below), whose sum is σ = 53487497018592. Its totient is φ = 8863873128960.

The previous prime is 22211450501183. The next prime is 22211450501203. The reversal of 22211450501200 is 210505411222.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22211450501203) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 384338707 + ... + 384396493.

Almost surely, 2^{22211450501200} is an apocalyptic number.

22211450501200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22211450501200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26743748509296).

22211450501200 is an abundant number, since it is smaller than the sum of its proper divisors (31276046517392).

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

22211450501200 is a wasteful number, since it uses less digits than its factorization.

22211450501200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60029 (or 60018 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 25.

Adding to 22211450501200 its reverse (210505411222), we get a palindrome (22421955912422).

The spelling of 22211450501200 in words is "twenty-two trillion, two hundred eleven billion, four hundred fifty million, five hundred one thousand, two hundred".