1010202210121 has 8 divisors (see below), whose sum is σ = 1089144942984. Its totient is φ = 931435887360.

The previous prime is 1010202210119. The next prime is 1010202210187. The reversal of 1010202210121 is 1210122020101.

It can be written as a sum of positive squares in 4 ways, for example, as 85460336896 + 924741873225 = 292336^2 + 961635^2 .

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 1010202210121 - 2¹ = 1010202210119 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1010202211121) 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, 44090626 + ... + 44113531.

It is an arithmetic number, because the mean of its divisors is an integer number (136143117873).

Almost surely, 2^{1010202210121} is an apocalyptic number.

It is an amenable number.

1010202210121 is a deficient number, since it is larger than the sum of its proper divisors (78942732863).

1010202210121 is an equidigital number, since it uses as much as digits as its factorization.

1010202210121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88205051.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 1010202210121 its reverse (1210122020101), we get a palindrome (2220324230222).

The spelling of 1010202210121 in words is "one trillion, ten billion, two hundred two million, two hundred ten thousand, one hundred twenty-one".