10022221987 has 8 divisors (see below), whose sum is σ = 10087466256. Its totient is φ = 9957062112.

The previous prime is 10022221961. The next prime is 10022221997. The reversal of 10022221987 is 78912222001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10022221987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10022221927) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 226573 + ... + 267169.

It is an arithmetic number, because the mean of its divisors is an integer number (1260933282).

Almost surely, 2^10022221987 is an apocalyptic number.

10022221987 is a deficient number, since it is larger than the sum of its proper divisors (65244269).

10022221987 is a wasteful number, since it uses less digits than its factorization.

10022221987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42197.

The product of its (nonzero) digits is 8064, while the sum is 34.

Adding to 10022221987 its reverse (78912222001), we get a palindrome (88934443988).

The spelling of 10022221987 in words is "ten billion, twenty-two million, two hundred twenty-one thousand, nine hundred eighty-seven".