211101220001211 has 8 divisors (see below), whose sum is σ = 281472854210064. Its totient is φ = 140731866229920.

The previous prime is 211101220001197. The next prime is 211101220001213. The reversal of 211101220001211 is 112100022101112.

It is a happy number.

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

It is not a de Polignac number, because 211101220001211 - 2⁷ = 211101220001083 is a prime.

It is not an unprimeable number, because it can be changed into a prime (211101220001213) 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, 569893380 + ... + 570263681.

It is an arithmetic number, because the mean of its divisors is an integer number (35184106776258).

Almost surely, 2^{211101220001211} is an apocalyptic number.

211101220001211 is a deficient number, since it is larger than the sum of its proper divisors (70371634208853).

211101220001211 is a wasteful number, since it uses less digits than its factorization.

211101220001211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1140218781.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 211101220001211 its reverse (112100022101112), we get a palindrome (323201242102323).

The spelling of 211101220001211 in words is "two hundred eleven trillion, one hundred one billion, two hundred twenty million, one thousand, two hundred eleven".