10101020202020 has 24 divisors (see below), whose sum is σ = 23140519008768. Its totient is φ = 3673098255200.

The previous prime is 10101020202017. The next prime is 10101020202083. The reversal of 10101020202020 is 2020202010101.

It is a happy number.

It is a super-2 number, since 2×10101020202020² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (11).

It is a junction number, because it is equal to n+sod(n) for n = 10101020201992 and 10101020202010.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22956863876 + ... + 22956864315.

It is an arithmetic number, because the mean of its divisors is an integer number (964188292032).

Almost surely, 2^{10101020202020} is an apocalyptic number.

10101020202020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10101020202020 is an abundant number, since it is smaller than the sum of its proper divisors (13039498806748).

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

10101020202020 is a wasteful number, since it uses less digits than its factorization.

10101020202020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45913728211 (or 45913728209 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 10101020202020 its reverse (2020202010101), we get a palindrome (12121222212121).

The spelling of 10101020202020 in words is "ten trillion, one hundred one billion, twenty million, two hundred two thousand, twenty".