20002120010 has 16 divisors (see below), whose sum is σ = 36012214656. Its totient is φ = 7998981648.

The previous prime is 20002120001. The next prime is 20002120121. The reversal of 20002120010 is 1002120002.

It is a self number, because there is not a number n which added to its sum of digits gives 20002120010.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 187862 + ... + 274401.

It is an arithmetic number, because the mean of its divisors is an integer number (2250763416).

Almost surely, 2^20002120010 is an apocalyptic number.

20002120010 is a deficient number, since it is larger than the sum of its proper divisors (16010094646).

20002120010 is a wasteful number, since it uses less digits than its factorization.

20002120010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 466597.

The product of its (nonzero) digits is 8, while the sum is 8.

Adding to 20002120010 its reverse (1002120002), we get a palindrome (21004240012).

The spelling of 20002120010 in words is "twenty billion, two million, one hundred twenty thousand, ten".