20001213010 has 16 divisors (see below), whose sum is σ = 36435946176. Its totient is φ = 7904093488.

The previous prime is 20001212993. The next prime is 20001213047. The reversal of 20001213010 is 1031210002.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12048094 + ... + 12049753.

It is an arithmetic number, because the mean of its divisors is an integer number (2277246636).

Almost surely, 2^20001213010 is an apocalyptic number.

20001213010 is a deficient number, since it is larger than the sum of its proper divisors (16434733166).

20001213010 is a wasteful number, since it uses less digits than its factorization.

20001213010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24097937.

The product of its (nonzero) digits is 12, while the sum is 10.

Adding to 20001213010 its reverse (1031210002), we get a palindrome (21032423012).

The spelling of 20001213010 in words is "twenty billion, one million, two hundred thirteen thousand, ten".