1020012102221 has 8 divisors (see below), whose sum is σ = 1165746838080. Its totient is φ = 874282046688.

The previous prime is 1020012102157. The next prime is 1020012102223. The reversal of 1020012102221 is 1222012100201.

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 1020012102221 - 2⁶ = 1020012102157 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1020012102196 and 1020012102205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020012102223) 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, 689936 + ... + 1586201.

It is an arithmetic number, because the mean of its divisors is an integer number (145718354760).

Almost surely, 2^{1020012102221} is an apocalyptic number.

It is an amenable number.

1020012102221 is a deficient number, since it is larger than the sum of its proper divisors (145734735859).

1020012102221 is an equidigital number, since it uses as much as digits as its factorization.

1020012102221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2340163.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 1020012102221 its reverse (1222012100201), we get a palindrome (2242024202422).

The spelling of 1020012102221 in words is "one trillion, twenty billion, twelve million, one hundred two thousand, two hundred twenty-one".