1011102122221 has 8 divisors (see below), whose sum is σ = 1046871557888. Its totient is φ = 975529764000.

The previous prime is 1011102122197. The next prime is 1011102122257. The reversal of 1011102122221 is 1222212011101.

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

It is a cyclic number.

It is not a de Polignac number, because 1011102122221 - 2⁵ = 1011102122189 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1011102122195 and 1011102122204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1011102122321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49258920 + ... + 49279441.

It is an arithmetic number, because the mean of its divisors is an integer number (130858944736).

Almost surely, 2^{1011102122221} is an apocalyptic number.

It is an amenable number.

1011102122221 is a deficient number, since it is larger than the sum of its proper divisors (35769435667).

1011102122221 is an equidigital number, since it uses as much as digits as its factorization.

1011102122221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98538723.

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

Adding to 1011102122221 its reverse (1222212011101), we get a palindrome (2233314133322).

The spelling of 1011102122221 in words is "one trillion, eleven billion, one hundred two million, one hundred twenty-two thousand, two hundred twenty-one".