1200002201111 has 48 divisors (see below), whose sum is σ = 1419931386720. Its totient is φ = 1011037547520.

The previous prime is 1200002201093. The next prime is 1200002201207. The reversal of 1200002201111 is 1111022000021.

It is a de Polignac number, because none of the positive numbers 2^k-1200002201111 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1200002201092 and 1200002201101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1200002201711) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 629260820 + ... + 629262726.

It is an arithmetic number, because the mean of its divisors is an integer number (29581903890).

Almost surely, 2^{1200002201111} is an apocalyptic number.

1200002201111 is a deficient number, since it is larger than the sum of its proper divisors (219929185609).

1200002201111 is a wasteful number, since it uses less digits than its factorization.

1200002201111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2784 (or 2777 counting only the distinct ones).

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

Adding to 1200002201111 its reverse (1111022000021), we get a palindrome (2311024201132).

The spelling of 1200002201111 in words is "one trillion, two hundred billion, two million, two hundred one thousand, one hundred eleven".