211101021122 has 4 divisors (see below), whose sum is σ = 316651531686. Its totient is φ = 105550510560.

The previous prime is 211101021029. The next prime is 211101021133. The reversal of 211101021122 is 221120101112.

211101021122 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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., 210599305921 + 501715201 = 458911^2 + 22399^2 .

It is a super-2 number, since 2×211101021122² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 211101021097 and 211101021106.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52775255279 + ... + 52775255282.

Almost surely, 2^211101021122 is an apocalyptic number.

211101021122 is a deficient number, since it is larger than the sum of its proper divisors (105550510564).

211101021122 is a wasteful number, since it uses less digits than its factorization.

211101021122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105550510563.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 211101021122 its reverse (221120101112), we get a palindrome (432221122234).

The spelling of 211101021122 in words is "two hundred eleven billion, one hundred one million, twenty-one thousand, one hundred twenty-two".