211220011017006 has 16 divisors (see below), whose sum is σ = 422995133767248. Its totient is φ = 70314151716800.

The previous prime is 211220011016983. The next prime is 211220011017007. The reversal of 211220011017006 is 600710110022112.

It is a super-2 number, since 2×211220011017006² (a number of 29 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211220011017007) 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, 23129650605 + ... + 23129659736.

It is an arithmetic number, because the mean of its divisors is an integer number (26437195860453).

Almost surely, 2^{211220011017006} is an apocalyptic number.

211220011017006 is an abundant number, since it is smaller than the sum of its proper divisors (211775122750242).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

211220011017006 is a wasteful number, since it uses less digits than its factorization.

211220011017006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46259311107.

The product of its (nonzero) digits is 336, while the sum is 24.

Adding to 211220011017006 its reverse (600710110022112), we get a palindrome (811930121039118).

The spelling of 211220011017006 in words is "two hundred eleven trillion, two hundred twenty billion, eleven million, seventeen thousand, six".