211242331212 has 24 divisors (see below), whose sum is σ = 537707752512. Its totient is φ = 64012827600.

The previous prime is 211242331207. The next prime is 211242331217. The reversal of 211242331212 is 212133242112.

It is an interprime number because it is at equal distance from previous prime (211242331207) and next prime (211242331217).

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (211242331217) 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, 800160214 + ... + 800160477.

It is an arithmetic number, because the mean of its divisors is an integer number (22404489688).

Almost surely, 2^211242331212 is an apocalyptic number.

211242331212 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

211242331212 is an abundant number, since it is smaller than the sum of its proper divisors (326465421300).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

211242331212 is a wasteful number, since it uses less digits than its factorization.

211242331212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1600320709 (or 1600320707 counting only the distinct ones).

The product of its digits is 1152, while the sum is 24.

Adding to 211242331212 its reverse (212133242112), we get a palindrome (423375573324).

It can be divided in two parts, 2112 and 42331212, that added together give a palindrome (42333324).

The spelling of 211242331212 in words is "two hundred eleven billion, two hundred forty-two million, three hundred thirty-one thousand, two hundred twelve".