212201051522 has 4 divisors (see below), whose sum is σ = 318301577286. Its totient is φ = 106100525760.

The previous prime is 212201051509. The next prime is 212201051539. The reversal of 212201051522 is 225150102212.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 125493771001 + 86707280521 = 354251^2 + 294461^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53050262879 + ... + 53050262882.

Almost surely, 2^212201051522 is an apocalyptic number.

212201051522 is a deficient number, since it is larger than the sum of its proper divisors (106100525764).

212201051522 is a wasteful number, since it uses less digits than its factorization.

212201051522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106100525763.

The product of its (nonzero) digits is 800, while the sum is 23.

Adding to 212201051522 its reverse (225150102212), we get a palindrome (437351153734).

The spelling of 212201051522 in words is "two hundred twelve billion, two hundred one million, fifty-one thousand, five hundred twenty-two".