1010221212109 has 8 divisors (see below), whose sum is σ = 1014403548600. Its totient is φ = 1006040825856.

The previous prime is 1010221212107. The next prime is 1010221212137. The reversal of 1010221212109 is 9012121220101.

It can be written as a sum of positive squares in 4 ways, for example, as 483031950025 + 527189262084 = 695005^2 + 726078^2 .

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 1010221212109 - 2¹ = 1010221212107 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 1010221212109.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1010221212103) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 555187 + ... + 1525999.

It is an arithmetic number, because the mean of its divisors is an integer number (126800443575).

Almost surely, 2^{1010221212109} is an apocalyptic number.

It is an amenable number.

1010221212109 is a deficient number, since it is larger than the sum of its proper divisors (4182336491).

1010221212109 is an equidigital number, since it uses as much as digits as its factorization.

1010221212109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 975119.

The product of its (nonzero) digits is 144, while the sum is 22.

It can be divided in two parts, 101022 and 1212109, that added together give a palindrome (1313131).

The spelling of 1010221212109 in words is "one trillion, ten billion, two hundred twenty-one million, two hundred twelve thousand, one hundred nine".