1010012122221 has 8 divisors (see below), whose sum is σ = 1346702440224. Its totient is φ = 673331609520.

The previous prime is 1010012122201. The next prime is 1010012122247. The reversal of 1010012122221 is 1222212100101.

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

It is not a de Polignac number, because 1010012122221 - 2¹³ = 1010012114029 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1010012122221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1010012122201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2207511 + ... + 2625476.

It is an arithmetic number, because the mean of its divisors is an integer number (168337805028).

Almost surely, 2^{1010012122221} is an apocalyptic number.

It is an amenable number.

1010012122221 is a deficient number, since it is larger than the sum of its proper divisors (336690318003).

1010012122221 is an equidigital number, since it uses as much as digits as its factorization.

1010012122221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4902651.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 1010012122221 its reverse (1222212100101), we get a palindrome (2232224222322).

It can be divided in two parts, 101001 and 2122221, that added together give a palindrome (2223222).

The spelling of 1010012122221 in words is "one trillion, ten billion, twelve million, one hundred twenty-two thousand, two hundred twenty-one".