1200012210111 has 32 divisors (see below), whose sum is σ = 1898350755840. Its totient is φ = 664688592000.

The previous prime is 1200012210109. The next prime is 1200012210113. The reversal of 1200012210111 is 1110122100021.

It is an interprime number because it is at equal distance from previous prime (1200012210109) and next prime (1200012210113).

It is not a de Polignac number, because 1200012210111 - 2¹ = 1200012210109 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1200012210113) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13804351 + ... + 13891008.

It is an arithmetic number, because the mean of its divisors is an integer number (59323461120).

Almost surely, 2^{1200012210111} is an apocalyptic number.

1200012210111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1200012210111 is a deficient number, since it is larger than the sum of its proper divisors (698338545729).

1200012210111 is a wasteful number, since it uses less digits than its factorization.

1200012210111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27695487.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 1200012210111 its reverse (1110122100021), we get a palindrome (2310134310132).

The spelling of 1200012210111 in words is "one trillion, two hundred billion, twelve million, two hundred ten thousand, one hundred eleven".