10120221008 has 20 divisors (see below), whose sum is σ = 19802069268. Its totient is φ = 5010009600.

The previous prime is 10120220987. The next prime is 10120221029. The reversal of 10120221008 is 80012202101.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (10120220987) and next prime (10120221029).

It can be written as a sum of positive squares in 2 ways, for example, as 8228666944 + 1891554064 = 90712^2 + 43492^2 .

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, 3129641 + ... + 3132872.

Almost surely, 2^10120221008 is an apocalyptic number.

It is an amenable number.

10120221008 is a deficient number, since it is larger than the sum of its proper divisors (9681848260).

10120221008 is a wasteful number, since it uses less digits than its factorization.

10120221008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6262622 (or 6262616 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 10120221008 its reverse (80012202101), we get a palindrome (90132423109).

The spelling of 10120221008 in words is "ten billion, one hundred twenty million, two hundred twenty-one thousand, eight".