10022210212121 has 4 divisors (see below), whose sum is σ = 10022293816500. Its totient is φ = 10022126607744.

The previous prime is 10022210212103. The next prime is 10022210212129. The reversal of 10022210212121 is 12121201222001.

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 5006115379225 + 5016094832896 = 2237435^2 + 2239664^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10022210212121 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 10022210212121.

It is not an unprimeable number, because it can be changed into a prime (10022210212129) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41622116 + ... + 41862213.

It is an arithmetic number, because the mean of its divisors is an integer number (2505573454125).

Almost surely, 2^{10022210212121} is an apocalyptic number.

It is an amenable number.

10022210212121 is a deficient number, since it is larger than the sum of its proper divisors (83604379).

10022210212121 is an equidigital number, since it uses as much as digits as its factorization.

10022210212121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83604378.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 10022210212121 its reverse (12121201222001), we get a palindrome (22143411434122).

The spelling of 10022210212121 in words is "ten trillion, twenty-two billion, two hundred ten million, two hundred twelve thousand, one hundred twenty-one".