211720006102012 has 6 divisors (see below), whose sum is σ = 370510010678528. Its totient is φ = 105860003051004.

The previous prime is 211720006101811. The next prime is 211720006102037. The reversal of 211720006102012 is 210201600027112.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26465000762748 + ... + 26465000762755.

Almost surely, 2^{211720006102012} is an apocalyptic number.

It is an amenable number.

211720006102012 is a deficient number, since it is larger than the sum of its proper divisors (158790004576516).

211720006102012 is a wasteful number, since it uses less digits than its factorization.

211720006102012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52930001525507 (or 52930001525505 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 25.

Adding to 211720006102012 its reverse (210201600027112), we get a palindrome (421921606129124).

The spelling of 211720006102012 in words is "two hundred eleven trillion, seven hundred twenty billion, six million, one hundred two thousand, twelve".