211200220210021 has 8 divisors (see below), whose sum is σ = 241456342374464. Its totient is φ = 180965263579200.

The previous prime is 211200220209991. The next prime is 211200220210033. The reversal of 211200220210021 is 120012022002112.

It is a happy number.

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 211200220210021 - 2¹¹ = 211200220207973 is a prime.

It is a super-2 number, since 2×211200220210021² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 211200220209977 and 211200220210004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211200220210051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5291362020 + ... + 5291401933.

It is an arithmetic number, because the mean of its divisors is an integer number (30182042796808).

Almost surely, 2^{211200220210021} is an apocalyptic number.

It is an amenable number.

211200220210021 is a deficient number, since it is larger than the sum of its proper divisors (30256122164443).

211200220210021 is a wasteful number, since it uses less digits than its factorization.

211200220210021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10582766811.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 211200220210021 its reverse (120012022002112), we get a palindrome (331212242212133).

The spelling of 211200220210021 in words is "two hundred eleven trillion, two hundred billion, two hundred twenty million, two hundred ten thousand, twenty-one".