1012122131121 has 12 divisors (see below), whose sum is σ = 1464172641360. Its totient is φ = 673724186520.

The previous prime is 1012122131077. The next prime is 1012122131149. The reversal of 1012122131121 is 1211312212101.

It is a happy number.

1012122131121 is a `hidden beast` number, since 10 + 121 + 221 + 311 + 2 + 1 = 666.

It is not a de Polignac number, because 1012122131121 - 2¹³ = 1012122122929 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1012122131094 and 1012122131103.

It is not an unprimeable number, because it can be changed into a prime (1012122131171) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 85318815 + ... + 85330676.

It is an arithmetic number, because the mean of its divisors is an integer number (122014386780).

Almost surely, 2^{1012122131121} is an apocalyptic number.

It is an amenable number.

1012122131121 is a deficient number, since it is larger than the sum of its proper divisors (452050510239).

1012122131121 is a wasteful number, since it uses less digits than its factorization.

1012122131121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170650156 (or 170650153 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 18.

Adding to 1012122131121 its reverse (1211312212101), we get a palindrome (2223434343222).

The spelling of 1012122131121 in words is "one trillion, twelve billion, one hundred twenty-two million, one hundred thirty-one thousand, one hundred twenty-one".