211211432201242 has 8 divisors (see below), whose sum is σ = 345618707238432. Its totient is φ = 96005196455100.

The previous prime is 211211432201197. The next prime is 211211432201311. The reversal of 211211432201242 is 242102234112112.

It is a happy number.

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

It is a super-2 number, since 2×211211432201242² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 211211432201242.

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, 4800259822734 + ... + 4800259822777.

It is an arithmetic number, because the mean of its divisors is an integer number (43202338404804).

Almost surely, 2^{211211432201242} is an apocalyptic number.

211211432201242 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

211211432201242 is a deficient number, since it is larger than the sum of its proper divisors (134407275037190).

211211432201242 is a wasteful number, since it uses less digits than its factorization.

211211432201242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9600519645524.

The product of its (nonzero) digits is 3072, while the sum is 28.

Adding to 211211432201242 its reverse (242102234112112), we get a palindrome (453313666313354).

The spelling of 211211432201242 in words is "two hundred eleven trillion, two hundred eleven billion, four hundred thirty-two million, two hundred one thousand, two hundred forty-two".