121032121202213 has 4 divisors (see below), whose sum is σ = 130342284371628. Its totient is φ = 111721958032800.

The previous prime is 121032121202207. The next prime is 121032121202347. The reversal of 121032121202213 is 312202121230121.

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 33792747801409 + 87239373400804 = 5813153^2 + 9340202^2 .

It is a cyclic number.

It is not a de Polignac number, because 121032121202213 - 2¹² = 121032121198117 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121032121202203) 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, 4655081584688 + ... + 4655081584713.

It is an arithmetic number, because the mean of its divisors is an integer number (32585571092907).

Almost surely, 2^{121032121202213} is an apocalyptic number.

121032121202213 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

121032121202213 is a deficient number, since it is larger than the sum of its proper divisors (9310163169415).

121032121202213 is an equidigital number, since it uses as much as digits as its factorization.

121032121202213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9310163169414.

The product of its (nonzero) digits is 576, while the sum is 23.

Adding to 121032121202213 its reverse (312202121230121), we get a palindrome (433234242432334).

The spelling of 121032121202213 in words is "one hundred twenty-one trillion, thirty-two billion, one hundred twenty-one million, two hundred two thousand, two hundred thirteen".