10011020220 has 72 divisors (see below), whose sum is σ = 30560266464. Its totient is φ = 2652594048.

The previous prime is 10011020207. The next prime is 10011020221. The reversal of 10011020220 is 2202011001.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10011020221) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 148864 + ... + 205383.

Almost surely, 2^10011020220 is an apocalyptic number.

10011020220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10011020220 is an abundant number, since it is smaller than the sum of its proper divisors (20549246244).

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

10011020220 is a wasteful number, since it uses less digits than its factorization.

10011020220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 354419 (or 354414 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 10011020220 its reverse (2202011001), we get a palindrome (12213031221).

The spelling of 10011020220 in words is "ten billion, eleven million, twenty thousand, two hundred twenty".