211201210012 has 24 divisors (see below), whose sum is σ = 400256715600. Its totient is φ = 96932910336.

The previous prime is 211201210001. The next prime is 211201210019. The reversal of 211201210012 is 210012102112.

It is a super-2 number, since 2×211201210012² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a junction number, because it is equal to n+sod(n) for n = 211201209974 and 211201210001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211201210019) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11335837 + ... + 11354452.

It is an arithmetic number, because the mean of its divisors is an integer number (16677363150).

Almost surely, 2^211201210012 is an apocalyptic number.

It is an amenable number.

211201210012 is a deficient number, since it is larger than the sum of its proper divisors (189055505588).

211201210012 is a wasteful number, since it uses less digits than its factorization.

211201210012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22690485 (or 22690483 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 211201210012 its reverse (210012102112), we get a palindrome (421213312124).

The spelling of 211201210012 in words is "two hundred eleven billion, two hundred one million, two hundred ten thousand, twelve".