211214430242 has 16 divisors (see below), whose sum is σ = 324209239200. Its totient is φ = 103144981632.

The previous prime is 211214430157. The next prime is 211214430307. The reversal of 211214430242 is 242034412112.

It is a super-2 number, since 2×211214430242² (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 7 ways as a sum of consecutive naturals, for example, 1560338 + ... + 1690290.

It is an arithmetic number, because the mean of its divisors is an integer number (20263077450).

Almost surely, 2^211214430242 is an apocalyptic number.

211214430242 is a deficient number, since it is larger than the sum of its proper divisors (112994808958).

211214430242 is a wasteful number, since it uses less digits than its factorization.

211214430242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148897.

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

Adding to 211214430242 its reverse (242034412112), we get a palindrome (453248842354).

The spelling of 211214430242 in words is "two hundred eleven billion, two hundred fourteen million, four hundred thirty thousand, two hundred forty-two".