1202012011001 has 4 divisors (see below), whose sum is σ = 1202031030900. Its totient is φ = 1201992991104.

The previous prime is 1202012010967. The next prime is 1202012011051. The reversal of 1202012011001 is 1001102102021.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 570781761001 + 631230250000 = 755501^2 + 794500^2 .

It is a cyclic number.

It is not a de Polignac number, because 1202012011001 - 2⁶ = 1202012010937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1202012011051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9414836 + ... + 9541653.

It is an arithmetic number, because the mean of its divisors is an integer number (300507757725).

Almost surely, 2^{1202012011001} is an apocalyptic number.

It is an amenable number.

1202012011001 is a deficient number, since it is larger than the sum of its proper divisors (19019899).

1202012011001 is an equidigital number, since it uses as much as digits as its factorization.

1202012011001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19019898.

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

Adding to 1202012011001 its reverse (1001102102021), we get a palindrome (2203114113022).

The spelling of 1202012011001 in words is "one trillion, two hundred two billion, twelve million, eleven thousand, one".