1211210201012 has 12 divisors (see below), whose sum is σ = 2422420402080. Its totient is φ = 519090086136.

The previous prime is 1211210200997. The next prime is 1211210201027. The reversal of 1211210201012 is 2101020121121.

It is an interprime number because it is at equal distance from previous prime (1211210200997) and next prime (1211210201027).

1211210201012 is an admirable number.

It is a Harshad number since it is a multiple of its sum of digits (14).

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, 21628753562 + ... + 21628753617.

It is an arithmetic number, because the mean of its divisors is an integer number (201868366840).

Almost surely, 2^{1211210201012} is an apocalyptic number.

It is an amenable number.

1211210201012 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1211210201012 is a wasteful number, since it uses less digits than its factorization.

1211210201012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43257507190 (or 43257507188 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 1211210201012 its reverse (2101020121121), we get a palindrome (3312230322133).

The spelling of 1211210201012 in words is "one trillion, two hundred eleven billion, two hundred ten million, two hundred one thousand, twelve".