10111020220 has 48 divisors (see below), whose sum is σ = 24274897920. Its totient is φ = 3465428544.

The previous prime is 10111020193. The next prime is 10111020287. The reversal of 10111020220 is 2202011101.

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 = 10111020197 and 10111020206.

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, 452061 + ... + 473899.

It is an arithmetic number, because the mean of its divisors is an integer number (505727040).

Almost surely, 2^10111020220 is an apocalyptic number.

10111020220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10111020220 is an abundant number, since it is smaller than the sum of its proper divisors (14163877700).

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

10111020220 is a wasteful number, since it uses less digits than its factorization.

10111020220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25162 (or 25160 counting only the distinct ones).

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

Adding to 10111020220 its reverse (2202011101), we get a palindrome (12313031321).

The spelling of 10111020220 in words is "ten billion, one hundred eleven million, twenty thousand, two hundred twenty".