10002227661 has 24 divisors (see below), whose sum is σ = 15481851840. Its totient is φ = 6200286336.

The previous prime is 10002227647. The next prime is 10002227663. The reversal of 10002227661 is 16672220001.

10002227661 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 10002227661 - 2¹⁷ = 10002096589 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10002227663) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 381121 + ... + 406518.

It is an arithmetic number, because the mean of its divisors is an integer number (645077160).

Almost surely, 2^10002227661 is an apocalyptic number.

It is an amenable number.

10002227661 is a deficient number, since it is larger than the sum of its proper divisors (5479624179).

10002227661 is a wasteful number, since it uses less digits than its factorization.

10002227661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 787745 (or 787742 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

Adding to 10002227661 its reverse (16672220001), we get a palindrome (26674447662).

The spelling of 10002227661 in words is "ten billion, two million, two hundred twenty-seven thousand, six hundred sixty-one".