211225530526 has 4 divisors (see below), whose sum is σ = 316838295792. Its totient is φ = 105612765262.

The previous prime is 211225530497. The next prime is 211225530541. The reversal of 211225530526 is 625035522112.

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

It is a junction number, because it is equal to n+sod(n) for n = 211225530491 and 211225530500.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52806382630 + ... + 52806382633.

It is an arithmetic number, because the mean of its divisors is an integer number (79209573948).

Almost surely, 2^211225530526 is an apocalyptic number.

211225530526 is a deficient number, since it is larger than the sum of its proper divisors (105612765266).

211225530526 is a wasteful number, since it uses less digits than its factorization.

211225530526 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105612765265.

The product of its (nonzero) digits is 36000, while the sum is 34.

The spelling of 211225530526 in words is "two hundred eleven billion, two hundred twenty-five million, five hundred thirty thousand, five hundred twenty-six".