43212001210442 has 4 divisors (see below), whose sum is σ = 64818001815666. Its totient is φ = 21606000605220.

The previous prime is 43212001210423. The next prime is 43212001210447. The reversal of 43212001210442 is 24401210021234.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 25172707252081 + 18039293958361 = 5017241^2 + 4247269^2 .

It is a super-2 number, since 2×43212001210442² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (43212001210447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10803000302609 + ... + 10803000302612.

Almost surely, 2^{43212001210442} is an apocalyptic number.

43212001210442 is a deficient number, since it is larger than the sum of its proper divisors (21606000605224).

43212001210442 is a wasteful number, since it uses less digits than its factorization.

43212001210442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21606000605223.

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

Adding to 43212001210442 its reverse (24401210021234), we get a palindrome (67613211231676).

The spelling of 43212001210442 in words is "forty-three trillion, two hundred twelve billion, one million, two hundred ten thousand, four hundred forty-two".