10121131220202 has 48 divisors (see below), whose sum is σ = 22147793157672. Its totient is φ = 3340072713600.

The previous prime is 10121131220183. The next prime is 10121131220261. The reversal of 10121131220202 is 20202213112101.

10121131220202 is a `hidden beast` number, since 1 + 0 + 1 + 211 + 31 + 220 + 202 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 9930685387401 + 190445832801 = 3151299^2 + 436401^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 26712828 + ... + 27089064.

Almost surely, 2^{10121131220202} is an apocalyptic number.

10121131220202 is an abundant number, since it is smaller than the sum of its proper divisors (12026661937470).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10121131220202 is a wasteful number, since it uses less digits than its factorization.

10121131220202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 391143 (or 391140 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 10121131220202 its reverse (20202213112101), we get a palindrome (30323344332303).

The spelling of 10121131220202 in words is "ten trillion, one hundred twenty-one billion, one hundred thirty-one million, two hundred twenty thousand, two hundred two".