1200210022111 has 4 divisors (see below), whose sum is σ = 1200212624232. Its totient is φ = 1200207419992.

The previous prime is 1200210022087. The next prime is 1200210022117. The reversal of 1200210022111 is 1112200120021.

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

It is a cyclic number.

It is not a de Polignac number, because 1200210022111 - 2⁹ = 1200210021599 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1200210022091 and 1200210022100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1200210022117) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 402196 + ... + 1600681.

It is an arithmetic number, because the mean of its divisors is an integer number (300053156058).

Almost surely, 2^{1200210022111} is an apocalyptic number.

1200210022111 is a deficient number, since it is larger than the sum of its proper divisors (2602121).

1200210022111 is an equidigital number, since it uses as much as digits as its factorization.

1200210022111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2602120.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 1200210022111 its reverse (1112200120021), we get a palindrome (2312410142132).

The spelling of 1200210022111 in words is "one trillion, two hundred billion, two hundred ten million, twenty-two thousand, one hundred eleven".