22511046426 has 48 divisors (see below), whose sum is σ = 49521326400. Its totient is φ = 6816810880.

The previous prime is 22511046409. The next prime is 22511046431. The reversal of 22511046426 is 62464011522.

It is a super-2 number, since 2×22511046426² (a number of 22 digits) contains 22 as substring.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1121890 + ... + 1141778.

It is an arithmetic number, because the mean of its divisors is an integer number (1031694300).

Almost surely, 2^22511046426 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22511046426, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24760663200).

22511046426 is an abundant number, since it is smaller than the sum of its proper divisors (27010279974).

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

22511046426 is a wasteful number, since it uses less digits than its factorization.

22511046426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21475 (or 21464 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 33.

Adding to 22511046426 its reverse (62464011522), we get a palindrome (84975057948).

The spelling of 22511046426 in words is "twenty-two billion, five hundred eleven million, forty-six thousand, four hundred twenty-six".