123210011121201 has 48 divisors (see below), whose sum is σ = 184011113539968. Its totient is φ = 79381832544000.

The previous prime is 123210011121191. The next prime is 123210011121287. The reversal of 123210011121201 is 102121110012321.

It is a happy number.

123210011121201 is a `hidden beast` number, since 1 + 232 + 100 + 11 + 121 + 201 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-123210011121201 is a prime.

It is a super-2 number, since 2×123210011121201² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (123210011123201) 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 47 ways as a sum of consecutive naturals, for example, 463828461 + ... + 464094021.

It is an arithmetic number, because the mean of its divisors is an integer number (3833564865416).

Almost surely, 2^{123210011121201} is an apocalyptic number.

It is an amenable number.

123210011121201 is a deficient number, since it is larger than the sum of its proper divisors (60801102418767).

123210011121201 is a wasteful number, since it uses less digits than its factorization.

123210011121201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 274982 (or 274979 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 18.

Adding to 123210011121201 its reverse (102121110012321), we get a palindrome (225331121133522).

The spelling of 123210011121201 in words is "one hundred twenty-three trillion, two hundred ten billion, eleven million, one hundred twenty-one thousand, two hundred one".