211212222022211 has 8 divisors (see below), whose sum is σ = 212734698321600. Its totient is φ = 209689788064680.

The previous prime is 211212222022201. The next prime is 211212222022213. The reversal of 211212222022211 is 112220222212112.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-211212222022211 is a prime.

It is a super-2 number, since 2×211212222022211² (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 (211212222022213) 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, 538745 + ... + 20560026.

It is an arithmetic number, because the mean of its divisors is an integer number (26591837290200).

Almost surely, 2^{211212222022211} is an apocalyptic number.

211212222022211 is a deficient number, since it is larger than the sum of its proper divisors (1522476299389).

211212222022211 is a wasteful number, since it uses less digits than its factorization.

211212222022211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21170929.

The product of its (nonzero) digits is 512, while the sum is 23.

Adding to 211212222022211 its reverse (112220222212112), we get a palindrome (323432444234323).

The spelling of 211212222022211 in words is "two hundred eleven trillion, two hundred twelve billion, two hundred twenty-two million, twenty-two thousand, two hundred eleven".