8610221012 has 12 divisors (see below), whose sum is σ = 15475127220. Its totient is φ = 4188756096.

The previous prime is 8610220973. The next prime is 8610221023. The reversal of 8610221012 is 2101220168.

It can be written as a sum of positive squares in 2 ways, for example, as 4775639236 + 3834581776 = 69106^2 + 61924^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29088437 + ... + 29088732.

It is an arithmetic number, because the mean of its divisors is an integer number (1289593935).

Almost surely, 2^8610221012 is an apocalyptic number.

It is an amenable number.

8610221012 is a deficient number, since it is larger than the sum of its proper divisors (6864906208).

8610221012 is a wasteful number, since it uses less digits than its factorization.

8610221012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58177210 (or 58177208 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 23.

The square root of 8610221012 is about 92791.2765943006. The cubic root of 8610221012 is about 2049.6109523067.

The spelling of 8610221012 in words is "eight billion, six hundred ten million, two hundred twenty-one thousand, twelve".