10020131220 has 192 divisors, whose sum is σ = 31111299072. Its totient is φ = 2389440000.

The previous prime is 10020131203. The next prime is 10020131237. The reversal of 10020131220 is 2213102001.

It is an interprime number because it is at equal distance from previous prime (10020131203) and next prime (10020131237).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 10020131196 and 10020131205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 12731667 + ... + 12732453.

It is an arithmetic number, because the mean of its divisors is an integer number (162038016).

Almost surely, 2^10020131220 is an apocalyptic number.

10020131220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10020131220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15555649536).

10020131220 is an abundant number, since it is smaller than the sum of its proper divisors (21091167852).

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

10020131220 is a wasteful number, since it uses less digits than its factorization.

10020131220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1102 (or 1100 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 10020131220 its reverse (2213102001), we get a palindrome (12233233221).

The spelling of 10020131220 in words is "ten billion, twenty million, one hundred thirty-one thousand, two hundred twenty".