12011201010122 has 4 divisors (see below), whose sum is σ = 18016801515186. Its totient is φ = 6005600505060.

The previous prime is 12011201010121. The next prime is 12011201010139. The reversal of 12011201010122 is 22101010211021.

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

It can be written as a sum of positive squares in only one way, i.e., 11395762329121 + 615438681001 = 3375761^2 + 784499^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12011201010097 and 12011201010106.

It is not an unprimeable number, because it can be changed into a prime (12011201010121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3002800252529 + ... + 3002800252532.

Almost surely, 2^{12011201010122} is an apocalyptic number.

12011201010122 is a deficient number, since it is larger than the sum of its proper divisors (6005600505064).

12011201010122 is an equidigital number, since it uses as much as digits as its factorization.

12011201010122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6005600505063.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 12011201010122 its reverse (22101010211021), we get a palindrome (34112211221143).

The spelling of 12011201010122 in words is "twelve trillion, eleven billion, two hundred one million, ten thousand, one hundred twenty-two".