211122221101 has 8 divisors (see below), whose sum is σ = 230418875808. Its totient is φ = 191842854000.

The previous prime is 211122221033. The next prime is 211122221173. The reversal of 211122221101 is 101122221112.

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 211122221101 - 2¹⁹ = 211121696813 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211122221801) 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, 4296355 + ... + 4345216.

It is an arithmetic number, because the mean of its divisors is an integer number (28802359476).

Almost surely, 2^211122221101 is an apocalyptic number.

It is an amenable number.

211122221101 is a deficient number, since it is larger than the sum of its proper divisors (19296654707).

211122221101 is a wasteful number, since it uses less digits than its factorization.

211122221101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8643803.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 211122221101 its reverse (101122221112), we get a palindrome (312244442213).

The spelling of 211122221101 in words is "two hundred eleven billion, one hundred twenty-two million, two hundred twenty-one thousand, one hundred one".