20001012112211 has 8 divisors (see below), whose sum is σ = 21812204057280. Its totient is φ = 18228770531712.

The previous prime is 20001012112181. The next prime is 20001012112217. The reversal of 20001012112211 is 11221121010002.

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

It is not a de Polignac number, because 20001012112211 - 2¹⁰ = 20001012111187 is a prime.

It is a super-2 number, since 2×20001012112211² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20001012112217) 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, 9737590070 + ... + 9737592123.

It is an arithmetic number, because the mean of its divisors is an integer number (2726525507160).

Almost surely, 2^{20001012112211} is an apocalyptic number.

20001012112211 is a deficient number, since it is larger than the sum of its proper divisors (1811191945069).

20001012112211 is a wasteful number, since it uses less digits than its factorization.

20001012112211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19475182285.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 20001012112211 its reverse (11221121010002), we get a palindrome (31222133122213).

The spelling of 20001012112211 in words is "twenty trillion, one billion, twelve million, one hundred twelve thousand, two hundred eleven".