10122210211021 has 4 divisors (see below), whose sum is σ = 10122463934044. Its totient is φ = 10121956488000.

The previous prime is 10122210210923. The next prime is 10122210211033. The reversal of 10122210211021 is 12011201222101.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 416555358921 + 9705654852100 = 645411^2 + 3115390^2 .

It is a cyclic number.

It is not a de Polignac number, because 10122210211021 - 2¹⁵ = 10122210178253 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10122210210986 and 10122210211004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10122210211051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 126801660 + ... + 126881461.

It is an arithmetic number, because the mean of its divisors is an integer number (2530615983511).

Almost surely, 2^{10122210211021} is an apocalyptic number.

It is an amenable number.

10122210211021 is a deficient number, since it is larger than the sum of its proper divisors (253723023).

10122210211021 is an equidigital number, since it uses as much as digits as its factorization.

10122210211021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 253723022.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 10122210211021 its reverse (12011201222101), we get a palindrome (22133411433122).

The spelling of 10122210211021 in words is "ten trillion, one hundred twenty-two billion, two hundred ten million, two hundred eleven thousand, twenty-one".