22501205443450 has 48 divisors (see below), whose sum is σ = 43747593992640. Its totient is φ = 8594236062720.

The previous prime is 22501205443439. The next prime is 22501205443463. The reversal of 22501205443450 is 5434450210522.

It is a super-2 number, since 2×22501205443450² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16291620 + ... + 17618719.

It is an arithmetic number, because the mean of its divisors is an integer number (911408208180).

Almost surely, 2^{22501205443450} is an apocalyptic number.

22501205443450 is a deficient number, since it is larger than the sum of its proper divisors (21246388549190).

22501205443450 is a wasteful number, since it uses less digits than its factorization.

22501205443450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33910951 (or 33910946 counting only the distinct ones).

The product of its (nonzero) digits is 192000, while the sum is 37.

Adding to 22501205443450 its reverse (5434450210522), we get a palindrome (27935655653972).

The spelling of 22501205443450 in words is "twenty-two trillion, five hundred one billion, two hundred five million, four hundred forty-three thousand, four hundred fifty".