211022231444 has 12 divisors (see below), whose sum is σ = 385344944544. Its totient is φ = 100923675864.

The previous prime is 211022231443. The next prime is 211022231449. The reversal of 211022231444 is 444132220112.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211022231443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1146859862 + ... + 1146860045.

It is an arithmetic number, because the mean of its divisors is an integer number (32112078712).

Almost surely, 2^211022231444 is an apocalyptic number.

It is an amenable number.

211022231444 is a deficient number, since it is larger than the sum of its proper divisors (174322713100).

211022231444 is a wasteful number, since it uses less digits than its factorization.

211022231444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2293719934 (or 2293719932 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 26.

Adding to 211022231444 its reverse (444132220112), we get a palindrome (655154451556).

The spelling of 211022231444 in words is "two hundred eleven billion, twenty-two million, two hundred thirty-one thousand, four hundred forty-four".