1210202111012 has 24 divisors (see below), whose sum is σ = 2235394170240. Its totient is φ = 571691619360.

The previous prime is 1210202110969. The next prime is 1210202111023. The reversal of 1210202111012 is 2101112020121.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21666539 + ... + 21722322.

It is an arithmetic number, because the mean of its divisors is an integer number (93141423760).

Almost surely, 2^{1210202111012} is an apocalyptic number.

It is an amenable number.

1210202111012 is a deficient number, since it is larger than the sum of its proper divisors (1025192059228).

1210202111012 is a wasteful number, since it uses less digits than its factorization.

1210202111012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43389251 (or 43389249 counting only the distinct ones).

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

Adding to 1210202111012 its reverse (2101112020121), we get a palindrome (3311314131133).

The spelling of 1210202111012 in words is "one trillion, two hundred ten billion, two hundred two million, one hundred eleven thousand, twelve".