10101200020 has 48 divisors (see below), whose sum is σ = 21595029120. Its totient is φ = 3967767936.

The previous prime is 10101200017. The next prime is 10101200027. The reversal of 10101200020 is 2000210101.

It is a junction number, because it is equal to n+sod(n) for n = 10101199976 and 10101200012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10101200027) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1250314 + ... + 1258366.

It is an arithmetic number, because the mean of its divisors is an integer number (449896440).

Almost surely, 2^10101200020 is an apocalyptic number.

10101200020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10101200020 is an abundant number, since it is smaller than the sum of its proper divisors (11493829100).

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

10101200020 is a wasteful number, since it uses less digits than its factorization.

10101200020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9184 (or 9182 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 7.

Adding to 10101200020 its reverse (2000210101), we get a palindrome (12101410121).

The spelling of 10101200020 in words is "ten billion, one hundred one million, two hundred thousand, twenty".