1200010001012 has 6 divisors (see below), whose sum is σ = 2100017501778. Its totient is φ = 600005000504.

The previous prime is 1200010000993. The next prime is 1200010001093. The reversal of 1200010001012 is 2101000100021.

It can be written as a sum of positive squares in only one way, i.e., 1199804766736 + 205234276 = 1095356^2 + 14326^2 .

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, 150001250123 + ... + 150001250130.

It is an arithmetic number, because the mean of its divisors is an integer number (350002916963).

Almost surely, 2^{1200010001012} is an apocalyptic number.

It is an amenable number.

1200010001012 is a deficient number, since it is larger than the sum of its proper divisors (900007500766).

1200010001012 is a wasteful number, since it uses less digits than its factorization.

1200010001012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 300002500257 (or 300002500255 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 8.

Adding to 1200010001012 its reverse (2101000100021), we get a palindrome (3301010101033).

Subtracting 1200010001012 from its reverse (2101000100021), we obtain a palindrome (900990099009).

The spelling of 1200010001012 in words is "one trillion, two hundred billion, ten million, one thousand, twelve".