110212120191 has 16 divisors (see below), whose sum is σ = 149808384000. Its totient is φ = 72057786528.

The previous prime is 110212120171. The next prime is 110212120223. The reversal of 110212120191 is 191021212011.

110212120191 = 27123² + 27124² + ... + 27271².

It is not a de Polignac number, because 110212120191 - 2⁵ = 110212120159 is a prime.

It is a super-2 number, since 2×110212120191² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (110212120171) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1525191 + ... + 1595816.

It is an arithmetic number, because the mean of its divisors is an integer number (9363024000).

Almost surely, 2^110212120191 is an apocalyptic number.

110212120191 is a deficient number, since it is larger than the sum of its proper divisors (39596263809).

110212120191 is a wasteful number, since it uses less digits than its factorization.

110212120191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3121238.

The product of its (nonzero) digits is 72, while the sum is 21.

The spelling of 110212120191 in words is "one hundred ten billion, two hundred twelve million, one hundred twenty thousand, one hundred ninety-one".