211352522542 has 32 divisors (see below), whose sum is σ = 385236725760. Its totient is φ = 84894714240.

The previous prime is 211352522539. The next prime is 211352522597. The reversal of 211352522542 is 245225253112.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a junction number, because it is equal to n+sod(n) for n = 211352522498 and 211352522507.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1800934 + ... + 1914697.

It is an arithmetic number, because the mean of its divisors is an integer number (12038647680).

Almost surely, 2^211352522542 is an apocalyptic number.

211352522542 is a deficient number, since it is larger than the sum of its proper divisors (173884203218).

211352522542 is a wasteful number, since it uses less digits than its factorization.

211352522542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3715896.

The product of its digits is 48000, while the sum is 34.

Adding to 211352522542 its reverse (245225253112), we get a palindrome (456577775654).

The spelling of 211352522542 in words is "two hundred eleven billion, three hundred fifty-two million, five hundred twenty-two thousand, five hundred forty-two".