211122110987 has 8 divisors (see below), whose sum is σ = 219969257472. Its totient is φ = 202402261800.

The previous prime is 211122110977. The next prime is 211122111041. The reversal of 211122110987 is 789011221112.

211122110987 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 211122110987 - 2⁴ = 211122110971 is a prime.

It is a super-2 number, since 2×211122110987² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (211122110957) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 31820939 + ... + 31827572.

It is an arithmetic number, because the mean of its divisors is an integer number (27496157184).

Almost surely, 2^211122110987 is an apocalyptic number.

211122110987 is a deficient number, since it is larger than the sum of its proper divisors (8847146485).

211122110987 is a wasteful number, since it uses less digits than its factorization.

211122110987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63648649.

The product of its (nonzero) digits is 4032, while the sum is 35.

The spelling of 211122110987 in words is "two hundred eleven billion, one hundred twenty-two million, one hundred ten thousand, nine hundred eighty-seven".