121023123220201 has 16 divisors (see below), whose sum is σ = 121610412762768. Its totient is φ = 120437540608000.

The previous prime is 121023123220163. The next prime is 121023123220243. The reversal of 121023123220201 is 102022321320121.

It can be written as a sum of positive squares in 8 ways, for example, as 3506162625625 + 117516960594576 = 1872475^2 + 10840524^2 .

It is a cyclic number.

It is not a de Polignac number, because 121023123220201 - 2⁷ = 121023123220073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121023123220801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 339525411 + ... + 339881671.

It is an arithmetic number, because the mean of its divisors is an integer number (7600650797673).

Almost surely, 2^{121023123220201} is an apocalyptic number.

It is an amenable number.

121023123220201 is a deficient number, since it is larger than the sum of its proper divisors (587289542567).

121023123220201 is a wasteful number, since it uses less digits than its factorization.

121023123220201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 358652.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 121023123220201 its reverse (102022321320121), we get a palindrome (223045444540322).

The spelling of 121023123220201 in words is "one hundred twenty-one trillion, twenty-three billion, one hundred twenty-three million, two hundred twenty thousand, two hundred one".