10121222111021 has 8 divisors (see below), whose sum is σ = 11567130938304. Its totient is φ = 8675318272320.

The previous prime is 10121222110949. The next prime is 10121222111041. The reversal of 10121222111021 is 12011122212101.

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

It is not a de Polignac number, because 10121222111021 - 2²² = 10121217916717 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10121222111041) 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, 5624906 + ... + 7202916.

It is an arithmetic number, because the mean of its divisors is an integer number (1445891367288).

Almost surely, 2^{10121222111021} is an apocalyptic number.

It is an amenable number.

10121222111021 is a deficient number, since it is larger than the sum of its proper divisors (1445908827283).

10121222111021 is an equidigital number, since it uses as much as digits as its factorization.

10121222111021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2494291.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 10121222111021 its reverse (12011122212101), we get a palindrome (22132344323122).

The spelling of 10121222111021 in words is "ten trillion, one hundred twenty-one billion, two hundred twenty-two million, one hundred eleven thousand, twenty-one".