211212100020001 has 8 divisors (see below), whose sum is σ = 211295531772000. Its totient is φ = 211128672107520.

The previous prime is 211212100019911. The next prime is 211212100020113. The reversal of 211212100020001 is 100020001212112.

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 211212100020001 - 2²³ = 211212091631393 is a prime.

It is a super-2 number, since 2×211212100020001² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (211212100020601) 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, 111688906 + ... + 113564236.

It is an arithmetic number, because the mean of its divisors is an integer number (26411941471500).

Almost surely, 2^{211212100020001} is an apocalyptic number.

It is an amenable number.

211212100020001 is a deficient number, since it is larger than the sum of its proper divisors (83431751999).

211212100020001 is a wasteful number, since it uses less digits than its factorization.

211212100020001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1919759.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 211212100020001 its reverse (100020001212112), we get a palindrome (311232101232113).

The spelling of 211212100020001 in words is "two hundred eleven trillion, two hundred twelve billion, one hundred million, twenty thousand, one".