1021102213 has 4 divisors (see below), whose sum is σ = 1042827840. Its totient is φ = 999376588.

The previous prime is 1021102193. The next prime is 1021102259. The reversal of 1021102213 is 3122011201.

1021102213 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, and also an emirpimes, since its reverse is a distinct semiprime: 3122011201 = 19 ⋅164316379.

It is a cyclic number.

It is not a de Polignac number, because 1021102213 - 2¹³ = 1021094021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1021102193 and 1021102202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1021102613) 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, 10862743 + ... + 10862836.

It is an arithmetic number, because the mean of its divisors is an integer number (260706960).

Almost surely, 2^1021102213 is an apocalyptic number.

It is an amenable number.

1021102213 is a deficient number, since it is larger than the sum of its proper divisors (21725627).

1021102213 is an equidigital number, since it uses as much as digits as its factorization.

1021102213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21725626.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 1021102213 is about 31954.6900000610. The cubic root of 1021102213 is about 1006.9851648639.

Adding to 1021102213 its reverse (3122011201), we get a palindrome (4143113414).

The spelling of 1021102213 in words is "one billion, twenty-one million, one hundred two thousand, two hundred thirteen".