211225154522 has 32 divisors (see below), whose sum is σ = 344720033280. Its totient is φ = 96819428160.

The previous prime is 211225154521. The next prime is 211225154537. The reversal of 211225154522 is 225451522112.

It is not an unprimeable number, because it can be changed into a prime (211225154521) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1012988 + ... + 1203575.

It is an arithmetic number, because the mean of its divisors is an integer number (10772501040).

Almost surely, 2^211225154522 is an apocalyptic number.

211225154522 is a deficient number, since it is larger than the sum of its proper divisors (133494878758).

211225154522 is a wasteful number, since it uses less digits than its factorization.

211225154522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2216678.

The product of its digits is 16000, while the sum is 32.

Adding to 211225154522 its reverse (225451522112), we get a palindrome (436676676634).

The spelling of 211225154522 in words is "two hundred eleven billion, two hundred twenty-five million, one hundred fifty-four thousand, five hundred twenty-two".