1010110221221 has 4 divisors (see below), whose sum is σ = 1010122332192. Its totient is φ = 1010098110252.

The previous prime is 1010110221217. The next prime is 1010110221223. The reversal of 1010110221221 is 1221220110101.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1010110221221 - 2² = 1010110221217 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1010110221196 and 1010110221205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1010110221223) 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, 5929505 + ... + 6097478.

It is an arithmetic number, because the mean of its divisors is an integer number (252530583048).

Almost surely, 2^{1010110221221} is an apocalyptic number.

It is an amenable number.

1010110221221 is a deficient number, since it is larger than the sum of its proper divisors (12110971).

1010110221221 is an equidigital number, since it uses as much as digits as its factorization.

1010110221221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12110970.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 1010110221221 its reverse (1221220110101), we get a palindrome (2231330331322).

The spelling of 1010110221221 in words is "one trillion, ten billion, one hundred ten million, two hundred twenty-one thousand, two hundred twenty-one".