212111304244042 has 32 divisors (see below), whose sum is σ = 364187342039040. Its totient is φ = 90762911648640.

The previous prime is 212111304244027. The next prime is 212111304244093. The reversal of 212111304244042 is 240442403111212.

It is a super-2 number, since 2×212111304244042² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 212111304243995 and 212111304244013.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41670942 + ... + 46483222.

It is an arithmetic number, because the mean of its divisors is an integer number (11380854438720).

Almost surely, 2^{212111304244042} is an apocalyptic number.

212111304244042 is a deficient number, since it is larger than the sum of its proper divisors (152076037794998).

212111304244042 is a wasteful number, since it uses less digits than its factorization.

212111304244042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4817206.

The product of its (nonzero) digits is 12288, while the sum is 31.

Adding to 212111304244042 its reverse (240442403111212), we get a palindrome (452553707355254).

The spelling of 212111304244042 in words is "two hundred twelve trillion, one hundred eleven billion, three hundred four million, two hundred forty-four thousand, forty-two".