211123202012 has 6 divisors (see below), whose sum is σ = 369465603528. Its totient is φ = 105561601004.

The previous prime is 211123201997. The next prime is 211123202021. The reversal of 211123202012 is 210202321112.

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, 26390400248 + ... + 26390400255.

It is an arithmetic number, because the mean of its divisors is an integer number (61577600588).

Almost surely, 2^211123202012 is an apocalyptic number.

It is an amenable number.

211123202012 is a deficient number, since it is larger than the sum of its proper divisors (158342401516).

211123202012 is a wasteful number, since it uses less digits than its factorization.

211123202012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52780800507 (or 52780800505 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 211123202012 its reverse (210202321112), we get a palindrome (421325523124).

The spelling of 211123202012 in words is "two hundred eleven billion, one hundred twenty-three million, two hundred two thousand, twelve".