1010020301220 has 192 divisors, whose sum is σ = 3379364352000. Its totient is φ = 220380728832.

The previous prime is 1010020301207. The next prime is 1010020301239. The reversal of 1010020301220 is 221030200101.

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 = 1010020301196 and 1010020301205.

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, 4715574 + ... + 4925106.

It is an arithmetic number, because the mean of its divisors is an integer number (17600856000).

Almost surely, 2^{1010020301220} is an apocalyptic number.

1010020301220 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 1010020301220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1689682176000).

1010020301220 is an abundant number, since it is smaller than the sum of its proper divisors (2369344050780).

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

1010020301220 is a wasteful number, since it uses less digits than its factorization.

1010020301220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210074 (or 210072 counting only the distinct ones).

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

Adding to 1010020301220 its reverse (221030200101), we get a palindrome (1231050501321).

The spelling of 1010020301220 in words is "one trillion, ten billion, twenty million, three hundred one thousand, two hundred twenty".