120221101122121 has 4 divisors (see below), whose sum is σ = 120229870637700. Its totient is φ = 120212331606544.

The previous prime is 120221101122079. The next prime is 120221101122167. The reversal of 120221101122121 is 121221101122021.

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 110829603774096 + 9391497348025 = 10527564^2 + 3064555^2 .

It is a cyclic number.

It is not a de Polignac number, because 120221101122121 - 2¹⁹ = 120221100597833 is a prime.

It is a super-2 number, since 2×120221101122121² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120221101102121) 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, 4384737226 + ... + 4384764643.

It is an arithmetic number, because the mean of its divisors is an integer number (30057467659425).

Almost surely, 2^{120221101122121} is an apocalyptic number.

It is an amenable number.

120221101122121 is a deficient number, since it is larger than the sum of its proper divisors (8769515579).

120221101122121 is an equidigital number, since it uses as much as digits as its factorization.

120221101122121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8769515578.

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 120221101122121 its reverse (121221101122021), we get a palindrome (241442202244142).

The spelling of 120221101122121 in words is "one hundred twenty trillion, two hundred twenty-one billion, one hundred one million, one hundred twenty-two thousand, one hundred twenty-one".