122100123021 has 32 divisors (see below), whose sum is σ = 169600811520. Its totient is φ = 78068620800.

The previous prime is 122100122953. The next prime is 122100123029. The reversal of 122100123021 is 120321001221.

It is not a de Polignac number, because 122100123021 - 2¹¹ = 122100120973 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122100123029) 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 31 ways as a sum of consecutive naturals, for example, 17876235 + ... + 17883063.

It is an arithmetic number, because the mean of its divisors is an integer number (5300025360).

Almost surely, 2^122100123021 is an apocalyptic number.

It is an amenable number.

122100123021 is a deficient number, since it is larger than the sum of its proper divisors (47500688499).

122100123021 is a wasteful number, since it uses less digits than its factorization.

122100123021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9317.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 122100123021 its reverse (120321001221), we get a palindrome (242421124242).

The spelling of 122100123021 in words is "one hundred twenty-two billion, one hundred million, one hundred twenty-three thousand, twenty-one".