1010122120021 has 8 divisors (see below), whose sum is σ = 1154623036160. Its totient is φ = 865670642928.

The previous prime is 1010122120019. The next prime is 1010122120067. The reversal of 1010122120021 is 1200212210101.

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

It is not a de Polignac number, because 1010122120021 - 2¹ = 1010122120019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1010122119983 and 1010122120010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1010122120001) 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, 12315966 + ... + 12397711.

It is an arithmetic number, because the mean of its divisors is an integer number (144327879520).

Almost surely, 2^{1010122120021} is an apocalyptic number.

It is an amenable number.

1010122120021 is a deficient number, since it is larger than the sum of its proper divisors (144500916139).

1010122120021 is an equidigital number, since it uses as much as digits as its factorization.

1010122120021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24719523.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 1010122120021 its reverse (1200212210101), we get a palindrome (2210334330122).

The spelling of 1010122120021 in words is "one trillion, ten billion, one hundred twenty-two million, one hundred twenty thousand, twenty-one".