1020012210101 has 4 divisors (see below), whose sum is σ = 1036733721804. Its totient is φ = 1003290698400.

The previous prime is 1020012210089. The next prime is 1020012210163. The reversal of 1020012210101 is 1010122100201.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 237096929476 + 782915280625 = 486926^2 + 884825^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1020012210101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020012210181) 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, 8360755760 + ... + 8360755881.

It is an arithmetic number, because the mean of its divisors is an integer number (259183430451).

Almost surely, 2^{1020012210101} is an apocalyptic number.

It is an amenable number.

1020012210101 is a deficient number, since it is larger than the sum of its proper divisors (16721511703).

1020012210101 is an equidigital number, since it uses as much as digits as its factorization.

1020012210101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16721511702.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 1020012210101 its reverse (1010122100201), we get a palindrome (2030134310302).

The spelling of 1020012210101 in words is "one trillion, twenty billion, twelve million, two hundred ten thousand, one hundred one".