212012144342 has 16 divisors (see below), whose sum is σ = 332241642000. Its totient is φ = 101337314400.

The previous prime is 212012144339. The next prime is 212012144363. The reversal of 212012144342 is 243441210212.

It is a super-2 number, since 2×212012144342² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18090092 + ... + 18101807.

It is an arithmetic number, because the mean of its divisors is an integer number (20765102625).

Almost surely, 2^212012144342 is an apocalyptic number.

212012144342 is a deficient number, since it is larger than the sum of its proper divisors (120229497658).

212012144342 is a wasteful number, since it uses less digits than its factorization.

212012144342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36192031.

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

Adding to 212012144342 its reverse (243441210212), we get a palindrome (455453354554).

The spelling of 212012144342 in words is "two hundred twelve billion, twelve million, one hundred forty-four thousand, three hundred forty-two".