1200111202101 has 96 divisors (see below), whose sum is σ = 1988019624960. Its totient is φ = 640246892544.

The previous prime is 1200111202079. The next prime is 1200111202123. The reversal of 1200111202101 is 1012021110021.

It is an interprime number because it is at equal distance from previous prime (1200111202079) and next prime (1200111202123).

It is not a de Polignac number, because 1200111202101 - 2⁷ = 1200111201973 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1200111201101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 57667840 + ... + 57688646.

It is an arithmetic number, because the mean of its divisors is an integer number (20708537760).

Almost surely, 2^{1200111202101} is an apocalyptic number.

It is an amenable number.

1200111202101 is a deficient number, since it is larger than the sum of its proper divisors (787908422859).

1200111202101 is a wasteful number, since it uses less digits than its factorization.

1200111202101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21143 (or 21136 counting only the distinct ones).

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

Adding to 1200111202101 its reverse (1012021110021), we get a palindrome (2212132312122).

The spelling of 1200111202101 in words is "one trillion, two hundred billion, one hundred eleven million, two hundred two thousand, one hundred one".