22235121546 has 64 divisors (see below), whose sum is σ = 49511264256. Its totient is φ = 6600484800.

The previous prime is 22235121533. The next prime is 22235121613. The reversal of 22235121546 is 64512153222.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a Curzon 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, 720591 + ... + 750813.

It is an arithmetic number, because the mean of its divisors is an integer number (773613504).

Almost surely, 2^22235121546 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22235121546, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24755632128).

22235121546 is an abundant number, since it is smaller than the sum of its proper divisors (27276142710).

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

22235121546 is a wasteful number, since it uses less digits than its factorization.

22235121546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30467.

The product of its digits is 28800, while the sum is 33.

Adding to 22235121546 its reverse (64512153222), we get a palindrome (86747274768).

The spelling of 22235121546 in words is "twenty-two billion, two hundred thirty-five million, one hundred twenty-one thousand, five hundred forty-six".