22120201254 has 32 divisors (see below), whose sum is σ = 44446423680. Its totient is φ = 7339108352.

The previous prime is 22120201231. The next prime is 22120201283. The reversal of 22120201254 is 45210202122.

It is a self number, because there is not a number n which added to its sum of digits gives 22120201254.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 2343757 + ... + 2353175.

It is an arithmetic number, because the mean of its divisors is an integer number (1388950740).

Almost surely, 2^22120201254 is an apocalyptic number.

22120201254 is an abundant number, since it is smaller than the sum of its proper divisors (22326222426).

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

22120201254 is a wasteful number, since it uses less digits than its factorization.

22120201254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11204.

The product of its (nonzero) digits is 640, while the sum is 21.

Adding to 22120201254 its reverse (45210202122), we get a palindrome (67330403376).

The spelling of 22120201254 in words is "twenty-two billion, one hundred twenty million, two hundred one thousand, two hundred fifty-four".