20011112212201 has 8 divisors (see below), whose sum is σ = 21987356781600. Its totient is φ = 18061043067840.

The previous prime is 20011112212129. The next prime is 20011112212229. The reversal of 20011112212201 is 10221221111002.

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

It is a cyclic number.

It is not a de Polignac number, because 20011112212201 - 2²⁷ = 20010977994473 is a prime.

It is a super-2 number, since 2×20011112212201² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20011112212241) 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, 6543854656 + ... + 6543857713.

It is an arithmetic number, because the mean of its divisors is an integer number (2748419597700).

Almost surely, 2^{20011112212201} is an apocalyptic number.

It is an amenable number.

20011112212201 is a deficient number, since it is larger than the sum of its proper divisors (1976244569399).

20011112212201 is a wasteful number, since it uses less digits than its factorization.

20011112212201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13087712519.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 20011112212201 its reverse (10221221111002), we get a palindrome (30232333323203).

The spelling of 20011112212201 in words is "twenty trillion, eleven billion, one hundred twelve million, two hundred twelve thousand, two hundred one".