20011210000001 has 8 divisors (see below), whose sum is σ = 21844306797408. Its totient is φ = 18180429184000.

The previous prime is 20011209999961. The next prime is 20011210000039. The reversal of 20011210000001 is 10000001211002.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20011210000001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20011210000801) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 578977280 + ... + 579011841.

It is an arithmetic number, because the mean of its divisors is an integer number (2730538349676).

Almost surely, 2^{20011210000001} is an apocalyptic number.

It is an amenable number.

20011210000001 is a deficient number, since it is larger than the sum of its proper divisors (1833096797407).

20011210000001 is a wasteful number, since it uses less digits than its factorization.

20011210000001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1157990703.

The product of its (nonzero) digits is 4, while the sum is 8.

Adding to 20011210000001 its reverse (10000001211002), we get a palindrome (30011211211003).

It can be divided in two parts, 20011 and 210000001, that added together give a palindrome (210020012).

The spelling of 20011210000001 in words is "twenty trillion, eleven billion, two hundred ten million, one", and thus it is an aban number.