211212212020001 has 16 divisors (see below), whose sum is σ = 226098011294400. Its totient is φ = 196703382002688.

The previous prime is 211212212019979. The next prime is 211212212020009. The reversal of 211212212020001 is 100020212212112.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-211212212020001 is a prime.

It is a super-2 number, since 2×211212212020001² (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 (211212212020009) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 364906841 + ... + 365485193.

It is an arithmetic number, because the mean of its divisors is an integer number (14131125705900).

Almost surely, 2^{211212212020001} is an apocalyptic number.

It is an amenable number.

211212212020001 is a deficient number, since it is larger than the sum of its proper divisors (14885799274399).

211212212020001 is a wasteful number, since it uses less digits than its factorization.

211212212020001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 904208.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 211212212020001 its reverse (100020212212112), we get a palindrome (311232424232113).

The spelling of 211212212020001 in words is "two hundred eleven trillion, two hundred twelve billion, two hundred twelve million, twenty thousand, one".