211432210442 has 8 divisors (see below), whose sum is σ = 325719891876. Its totient is φ = 102858913152.

The previous prime is 211432210397. The next prime is 211432210487. The reversal of 211432210442 is 244012234112.

It is an interprime number because it is at equal distance from previous prime (211432210397) and next prime (211432210487).

It can be written as a sum of positive squares in 2 ways, for example, as 210333221641 + 1098988801 = 458621^2 + 33151^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×211432210442² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1428595943 + ... + 1428596090.

Almost surely, 2^211432210442 is an apocalyptic number.

211432210442 is a deficient number, since it is larger than the sum of its proper divisors (114287681434).

211432210442 is a wasteful number, since it uses less digits than its factorization.

211432210442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2857192072.

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

Adding to 211432210442 its reverse (244012234112), we get a palindrome (455444444554).

The spelling of 211432210442 in words is "two hundred eleven billion, four hundred thirty-two million, two hundred ten thousand, four hundred forty-two".