10202012205 has 128 divisors (see below), whose sum is σ = 21824225280. Its totient is φ = 3939287040.

The previous prime is 10202012203. The next prime is 10202012243. The reversal of 10202012205 is 50221020201.

It is not a de Polignac number, because 10202012205 - 2¹ = 10202012203 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10202012201) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 1547877 + ... + 1554453.

It is an arithmetic number, because the mean of its divisors is an integer number (170501760).

Almost surely, 2^10202012205 is an apocalyptic number.

10202012205 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

10202012205 is an abundant number, since it is smaller than the sum of its proper divisors (11622213075).

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

10202012205 is a wasteful number, since it uses less digits than its factorization.

10202012205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6699.

The product of its (nonzero) digits is 80, while the sum is 15.

Adding to 10202012205 its reverse (50221020201), we get a palindrome (60423032406).

The spelling of 10202012205 in words is "ten billion, two hundred two million, twelve thousand, two hundred five".