112121201002021 has 8 divisors (see below), whose sum is σ = 113416677209880. Its totient is φ = 110831045025792.

The previous prime is 112121201001947. The next prime is 112121201002033. The reversal of 112121201002021 is 120200102121211.

It can be written as a sum of positive squares in 4 ways, for example, as 3507806851396 + 108613394150625 = 1872914^2 + 10421775^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 112121201002021 - 2¹⁷ = 112121200870949 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 112121201001986 and 112121201002004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112121201002091) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1330015516 + ... + 1330099813.

It is an arithmetic number, because the mean of its divisors is an integer number (14177084651235).

Almost surely, 2^{112121201002021} is an apocalyptic number.

It is an amenable number.

112121201002021 is a deficient number, since it is larger than the sum of its proper divisors (1295476207859).

112121201002021 is a wasteful number, since it uses less digits than its factorization.

112121201002021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2660115815.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 112121201002021 its reverse (120200102121211), we get a palindrome (232321303123232).

The spelling of 112121201002021 in words is "one hundred twelve trillion, one hundred twenty-one billion, two hundred one million, two thousand, twenty-one".