12101303021121 has 24 divisors (see below), whose sum is σ = 17580841572840. Its totient is φ = 8020859500800.

The previous prime is 12101303021113. The next prime is 12101303021123. The reversal of 12101303021121 is 12112030310121.

12101303021121 is a `hidden beast` number, since 1 + 210 + 1 + 30 + 302 + 1 + 121 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 2697348096 + 12098605673025 = 51936^2 + 3478305^2 .

It is not a de Polignac number, because 12101303021121 - 2³ = 12101303021113 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12101303021094 and 12101303021103.

It is not an unprimeable number, because it can be changed into a prime (12101303021123) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5252325 + ... + 7196493.

It is an arithmetic number, because the mean of its divisors is an integer number (732535065535).

Almost surely, 2^{12101303021121} is an apocalyptic number.

It is an amenable number.

12101303021121 is a deficient number, since it is larger than the sum of its proper divisors (5479538551719).

12101303021121 is a wasteful number, since it uses less digits than its factorization.

12101303021121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1948177 (or 1948174 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 12101303021121 its reverse (12112030310121), we get a palindrome (24213333331242).

The spelling of 12101303021121 in words is "twelve trillion, one hundred one billion, three hundred three million, twenty-one thousand, one hundred twenty-one".