22000001252 has 12 divisors (see below), whose sum is σ = 38511611376. Its totient is φ = 10996683720.

The previous prime is 22000001249. The next prime is 22000001263. The reversal of 22000001252 is 25210000022.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 814274 + ... + 840857.

It is an arithmetic number, because the mean of its divisors is an integer number (3209300948).

Almost surely, 2^22000001252 is an apocalyptic number.

It is an amenable number.

22000001252 is a deficient number, since it is larger than the sum of its proper divisors (16511610124).

22000001252 is a wasteful number, since it uses less digits than its factorization.

22000001252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1658458 (or 1658456 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 14.

Adding to 22000001252 its reverse (25210000022), we get a palindrome (47210001274).

The spelling of 22000001252 in words is "twenty-two billion, one thousand, two hundred fifty-two".