211200010022021 has 16 divisors (see below), whose sum is σ = 227506185561600. Its totient is φ = 195413701473648.

The previous prime is 211200010021943. The next prime is 211200010022063. The reversal of 211200010022021 is 120220010002112.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-211200010022021 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 211200010021987 and 211200010022005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211200010022621) 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, 2318171 + ... + 20682696.

It is an arithmetic number, because the mean of its divisors is an integer number (14219136597600).

Almost surely, 2^{211200010022021} is an apocalyptic number.

It is an amenable number.

211200010022021 is a deficient number, since it is larger than the sum of its proper divisors (16306175539579).

211200010022021 is a wasteful number, since it uses less digits than its factorization.

211200010022021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23012168.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 211200010022021 its reverse (120220010002112), we get a palindrome (331420020024133).

The spelling of 211200010022021 in words is "two hundred eleven trillion, two hundred billion, ten million, twenty-two thousand, twenty-one".