10020221010 has 48 divisors (see below), whose sum is σ = 26134833816. Its totient is φ = 2663622144.

The previous prime is 10020220981. The next prime is 10020221011. The reversal of 10020221010 is 1012202001.

It can be written as a sum of positive squares in 4 ways, for example, as 8365114521 + 1655106489 = 91461^2 + 40683^2 .

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 10020220983 and 10020221001.

It is not an unprimeable number, because it can be changed into a prime (10020221011) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 147079 + ... + 204138.

Almost surely, 2^10020221010 is an apocalyptic number.

10020221010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

10020221010 is an abundant number, since it is smaller than the sum of its proper divisors (16114612806).

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

10020221010 is a wasteful number, since it uses less digits than its factorization.

10020221010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 351547 (or 351544 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 10020221010 its reverse (1012202001), we get a palindrome (11032423011).

The spelling of 10020221010 in words is "ten billion, twenty million, two hundred twenty-one thousand, ten".