124033212012121 has 4 divisors (see below), whose sum is σ = 126066543356644. Its totient is φ = 121999880667600.

The previous prime is 124033212012019. The next prime is 124033212012131. The reversal of 124033212012121 is 121210212330421.

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

It can be written as a sum of positive squares in 2 ways, for example, as 3226294923721 + 120806917088400 = 1796189^2 + 10991220^2 .

It is a cyclic number.

It is not a de Polignac number, because 124033212012121 - 2¹⁹ = 124033211487833 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (124033212012131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1016665672170 + ... + 1016665672291.

It is an arithmetic number, because the mean of its divisors is an integer number (31516635839161).

Almost surely, 2^{124033212012121} is an apocalyptic number.

It is an amenable number.

124033212012121 is a deficient number, since it is larger than the sum of its proper divisors (2033331344523).

124033212012121 is an equidigital number, since it uses as much as digits as its factorization.

124033212012121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2033331344522.

The product of its (nonzero) digits is 1152, while the sum is 25.

Adding to 124033212012121 its reverse (121210212330421), we get a palindrome (245243424342542).

The spelling of 124033212012121 in words is "one hundred twenty-four trillion, thirty-three billion, two hundred twelve million, twelve thousand, one hundred twenty-one".