211122023212 has 24 divisors (see below), whose sum is σ = 369906324480. Its totient is φ = 105434576640.

The previous prime is 211122023207. The next prime is 211122023219. The reversal of 211122023212 is 212320221112.

It is a self number, because there is not a number n which added to its sum of digits gives 211122023212.

It is not an unprimeable number, because it can be changed into a prime (211122023219) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14462037 + ... + 14476627.

It is an arithmetic number, because the mean of its divisors is an integer number (15412763520).

Almost surely, 2^211122023212 is an apocalyptic number.

It is an amenable number.

211122023212 is a deficient number, since it is larger than the sum of its proper divisors (158784301268).

211122023212 is a wasteful number, since it uses less digits than its factorization.

211122023212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18681 (or 18679 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 211122023212 its reverse (212320221112), we get a palindrome (423442244324).

The spelling of 211122023212 in words is "two hundred eleven billion, one hundred twenty-two million, twenty-three thousand, two hundred twelve".