10101012020 has 96 divisors (see below), whose sum is σ = 23655494016. Its totient is φ = 3592256000.

The previous prime is 10101012017. The next prime is 10101012073. The reversal of 10101012020 is 2021010101.

It is a junction number, because it is equal to n+sod(n) for n = 10101011989 and 10101012007.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1841522 + ... + 1846998.

It is an arithmetic number, because the mean of its divisors is an integer number (246411396).

Almost surely, 2^10101012020 is an apocalyptic number.

10101012020 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 10101012020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11827747008).

10101012020 is an abundant number, since it is smaller than the sum of its proper divisors (13554481996).

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

10101012020 is a wasteful number, since it uses less digits than its factorization.

10101012020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5681 (or 5679 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 8.

Adding to 10101012020 its reverse (2021010101), we get a palindrome (12122022121).

The spelling of 10101012020 in words is "ten billion, one hundred one million, twelve thousand, twenty".