120002020122121 has 4 divisors (see below), whose sum is σ = 120002757710544. Its totient is φ = 120001282533700.

The previous prime is 120002020122041. The next prime is 120002020122221. The reversal of 120002020122121 is 121221020200021.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 120002020122121 - 2⁴⁵ = 84817648033289 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 120002020122095 and 120002020122104.

It is not an unprimeable number, because it can be changed into a prime (120002020122221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 368550115 + ... + 368875576.

It is an arithmetic number, because the mean of its divisors is an integer number (30000689427636).

Almost surely, 2^{120002020122121} is an apocalyptic number.

It is an amenable number.

120002020122121 is a deficient number, since it is larger than the sum of its proper divisors (737588423).

120002020122121 is an equidigital number, since it uses as much as digits as its factorization.

120002020122121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 737588422.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 120002020122121 its reverse (121221020200021), we get a palindrome (241223040322142).

The spelling of 120002020122121 in words is "one hundred twenty trillion, two billion, twenty million, one hundred twenty-two thousand, one hundred twenty-one".