1201112211009 has 16 divisors (see below), whose sum is σ = 1617418050624. Its totient is φ = 792774696000.

The previous prime is 1201112210971. The next prime is 1201112211023. The reversal of 1201112211009 is 9001122111021.

It is not a de Polignac number, because 1201112211009 - 2¹⁵ = 1201112178241 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1201112211709) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6984954 + ... + 7154844.

It is an arithmetic number, because the mean of its divisors is an integer number (101088628164).

Almost surely, 2^{1201112211009} is an apocalyptic number.

It is an amenable number.

1201112211009 is a deficient number, since it is larger than the sum of its proper divisors (416305839615).

1201112211009 is a wasteful number, since it uses less digits than its factorization.

1201112211009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193328.

The product of its (nonzero) digits is 72, while the sum is 21.

The spelling of 1201112211009 in words is "one trillion, two hundred one billion, one hundred twelve million, two hundred eleven thousand, nine".