1200010201011 has 24 divisors (see below), whose sum is σ = 1779361748736. Its totient is φ = 778889366640.

The previous prime is 1200010201003. The next prime is 1200010201031. The reversal of 1200010201011 is 1101020100021.

It is a happy number.

It is not a de Polignac number, because 1200010201011 - 2³ = 1200010201003 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 1200010200984 and 1200010201002.

It is not an unprimeable number, because it can be changed into a prime (1200010201031) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4864855 + ... + 5105568.

It is an arithmetic number, because the mean of its divisors is an integer number (74140072864).

Almost surely, 2^{1200010201011} is an apocalyptic number.

1200010201011 is a deficient number, since it is larger than the sum of its proper divisors (579351547725).

1200010201011 is a wasteful number, since it uses less digits than its factorization.

1200010201011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9970783 (or 9970780 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 1200010201011 its reverse (1101020100021), we get a palindrome (2301030301032).

The spelling of 1200010201011 in words is "one trillion, two hundred billion, ten million, two hundred one thousand, eleven".