121322021012113 has 4 divisors (see below), whose sum is σ = 122685189787620. Its totient is φ = 119958852236608.

The previous prime is 121322021012053. The next prime is 121322021012123. The reversal of 121322021012113 is 311210120223121.

It is a happy number.

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 76628891886849 + 44693129125264 = 8753793^2 + 6685292^2 .

It is a cyclic number.

It is not a de Polignac number, because 121322021012113 - 2³³ = 121313431077521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121322021012123) 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, 681584387620 + ... + 681584387797.

It is an arithmetic number, because the mean of its divisors is an integer number (30671297446905).

Almost surely, 2^{121322021012113} is an apocalyptic number.

It is an amenable number.

121322021012113 is a deficient number, since it is larger than the sum of its proper divisors (1363168775507).

121322021012113 is an equidigital number, since it uses as much as digits as its factorization.

121322021012113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1363168775506.

The product of its (nonzero) digits is 288, while the sum is 22.

Adding to 121322021012113 its reverse (311210120223121), we get a palindrome (432532141235234).

The spelling of 121322021012113 in words is "one hundred twenty-one trillion, three hundred twenty-two billion, twenty-one million, twelve thousand, one hundred thirteen".