121221022001023 has 8 divisors (see below), whose sum is σ = 138989575716992. Its totient is φ = 103565284499736.

The previous prime is 121221022001021. The next prime is 121221022001063. The reversal of 121221022001023 is 320100220122121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 121221022001023 - 2¹ = 121221022001021 is a prime.

It is a super-2 number, since 2×121221022001023² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121221022001021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28204051365 + ... + 28204055662.

It is an arithmetic number, because the mean of its divisors is an integer number (17373696964624).

Almost surely, 2^{121221022001023} is an apocalyptic number.

121221022001023 is a deficient number, since it is larger than the sum of its proper divisors (17768553715969).

121221022001023 is an equidigital number, since it uses as much as digits as its factorization.

121221022001023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56408107341.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 121221022001023 its reverse (320100220122121), we get a palindrome (441321242123144).

The spelling of 121221022001023 in words is "one hundred twenty-one trillion, two hundred twenty-one billion, twenty-two million, one thousand, twenty-three".