20013100021210 has 8 divisors (see below), whose sum is σ = 36023580038196. Its totient is φ = 8005240008480.

The previous prime is 20013100021169. The next prime is 20013100021301. The reversal of 20013100021210 is 1212000131002.

It can be written as a sum of positive squares in 2 ways, for example, as 19815059890921 + 198040130289 = 4451411^2 + 445017^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

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, 1000655001051 + ... + 1000655001070.

Almost surely, 2^{20013100021210} is an apocalyptic number.

20013100021210 is a deficient number, since it is larger than the sum of its proper divisors (16010480016986).

20013100021210 is a wasteful number, since it uses less digits than its factorization.

20013100021210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2001310002128.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 20013100021210 its reverse (1212000131002), we get a palindrome (21225100152212).

The spelling of 20013100021210 in words is "twenty trillion, thirteen billion, one hundred million, twenty-one thousand, two hundred ten".