202011101020 has 48 divisors (see below), whose sum is σ = 430626960288. Its totient is φ = 79585102080.

The previous prime is 202011100979. The next prime is 202011101059. The reversal of 202011101020 is 20101110202.

202011101020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 202011100988 and 202011101006.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13098834 + ... + 13114246.

It is an arithmetic number, because the mean of its divisors is an integer number (8971395006).

Almost surely, 2^202011101020 is an apocalyptic number.

202011101020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202011101020 is an abundant number, since it is smaller than the sum of its proper divisors (228615859268).

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

202011101020 is a wasteful number, since it uses less digits than its factorization.

202011101020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25270 (or 25268 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 202011101020 its reverse (20101110202), we get a palindrome (222112211222).

It can be divided in two parts, 202011 and 101020, that added together give a triangular number (303031 = T₇₇₈).

The spelling of 202011101020 in words is "two hundred two billion, eleven million, one hundred one thousand, twenty".