211101021106 has 4 divisors (see below), whose sum is σ = 316651531662. Its totient is φ = 105550510552.

The previous prime is 211101021029. The next prime is 211101021133. The reversal of 211101021106 is 601120101112.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 210672738081 + 428283025 = 458991^2 + 20695^2 .

It is a super-2 number, since 2×211101021106² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 211101021106.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52775255275 + ... + 52775255278.

Almost surely, 2^211101021106 is an apocalyptic number.

211101021106 is a deficient number, since it is larger than the sum of its proper divisors (105550510556).

211101021106 is a wasteful number, since it uses less digits than its factorization.

211101021106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105550510555.

The product of its (nonzero) digits is 24, while the sum is 16.

Adding to 211101021106 its reverse (601120101112), we get a palindrome (812221122218).

The spelling of 211101021106 in words is "two hundred eleven billion, one hundred one million, twenty-one thousand, one hundred six".