1210001201012 has 12 divisors (see below), whose sum is σ = 2242061049060. Its totient is φ = 569412329856.

The previous prime is 1210001200981. The next prime is 1210001201023. The reversal of 1210001201012 is 2101021000121.

It can be written as a sum of positive squares in 2 ways, for example, as 409899574756 + 800101626256 = 640234^2 + 894484^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1210001200984 and 1210001201002.

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, 8897067587 + ... + 8897067722.

It is an arithmetic number, because the mean of its divisors is an integer number (186838420755).

Almost surely, 2^{1210001201012} is an apocalyptic number.

It is an amenable number.

1210001201012 is a deficient number, since it is larger than the sum of its proper divisors (1032059848048).

1210001201012 is a wasteful number, since it uses less digits than its factorization.

1210001201012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17794135330 (or 17794135328 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 1210001201012 its reverse (2101021000121), we get a palindrome (3311022201133).

The spelling of 1210001201012 in words is "one trillion, two hundred ten billion, one million, two hundred one thousand, twelve".