122101120101021 has 16 divisors (see below), whose sum is σ = 171514365580800. Its totient is φ = 77051529300528.

The previous prime is 122101120101019. The next prime is 122101120101031. The reversal of 122101120101021 is 120101021101221.

It is a happy number.

It is not a de Polignac number, because 122101120101021 - 2¹ = 122101120101019 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122101120101031) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 902259601 + ... + 902394918.

It is an arithmetic number, because the mean of its divisors is an integer number (10719647848800).

Almost surely, 2^{122101120101021} is an apocalyptic number.

It is an amenable number.

122101120101021 is a deficient number, since it is larger than the sum of its proper divisors (49413245479779).

122101120101021 is a wasteful number, since it uses less digits than its factorization.

122101120101021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1804655728.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 122101120101021 its reverse (120101021101221), we get a palindrome (242202141202242).

The spelling of 122101120101021 in words is "one hundred twenty-two trillion, one hundred one billion, one hundred twenty million, one hundred one thousand, twenty-one".