211525402012 has 12 divisors (see below), whose sum is σ = 373628981880. Its totient is φ = 104774264336.

The previous prime is 211525401979. The next prime is 211525402057. The reversal of 211525402012 is 210204525112.

It is a congruent number.

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, 247108687 + ... + 247109542.

It is an arithmetic number, because the mean of its divisors is an integer number (31135748490).

Almost surely, 2^211525402012 is an apocalyptic number.

It is an amenable number.

211525402012 is a deficient number, since it is larger than the sum of its proper divisors (162103579868).

211525402012 is a wasteful number, since it uses less digits than its factorization.

211525402012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 494218340 (or 494218338 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 25.

Adding to 211525402012 its reverse (210204525112), we get a palindrome (421729927124).

The spelling of 211525402012 in words is "two hundred eleven billion, five hundred twenty-five million, four hundred two thousand, twelve".