22245540212000 has 192 divisors, whose sum is σ = 62471444555520. Its totient is φ = 7626313728000.

The previous prime is 22245540211981. The next prime is 22245540212083. The reversal of 22245540212000 is 21204554222.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 351060320 + ... + 351123680.

It is an arithmetic number, because the mean of its divisors is an integer number (325372107060).

Almost surely, 2^{22245540212000} is an apocalyptic number.

22245540212000 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 22245540212000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31235722277760).

22245540212000 is an abundant number, since it is smaller than the sum of its proper divisors (40225904343520).

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

22245540212000 is a wasteful number, since it uses less digits than its factorization.

22245540212000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75932 (or 75914 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 29.

Adding to 22245540212000 its reverse (21204554222), we get a palindrome (22266744766222).

The spelling of 22245540212000 in words is "twenty-two trillion, two hundred forty-five billion, five hundred forty million, two hundred twelve thousand".