211220222010011 has 8 divisors (see below), whose sum is σ = 211945171223184. Its totient is φ = 210495300423840.

The previous prime is 211220222009963. The next prime is 211220222010013. The reversal of 211220222010011 is 110010222022112.

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-211220222010011 is a prime.

It is a super-2 number, since 2×211220222010011² (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 (211220222010013) 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, 8468981 + ... + 22229801.

It is an arithmetic number, because the mean of its divisors is an integer number (26493146402898).

Almost surely, 2^{211220222010011} is an apocalyptic number.

211220222010011 is a deficient number, since it is larger than the sum of its proper divisors (724949213173).

211220222010011 is a wasteful number, since it uses less digits than its factorization.

211220222010011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13813501.

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

Adding to 211220222010011 its reverse (110010222022112), we get a palindrome (321230444032123).

The spelling of 211220222010011 in words is "two hundred eleven trillion, two hundred twenty billion, two hundred twenty-two million, ten thousand, eleven".