20102011010220 has 96 divisors (see below), whose sum is σ = 56703626800128. Its totient is φ = 5320874310912.

The previous prime is 20102011010209. The next prime is 20102011010273. The reversal of 20102011010220 is 2201011020102.

It is a super-2 number, since 2×20102011010220² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 20102011010196 and 20102011010205.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2071617 + ... + 6670503.

It is an arithmetic number, because the mean of its divisors is an integer number (590662779168).

Almost surely, 2^{20102011010220} is an apocalyptic number.

20102011010220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20102011010220 is an abundant number, since it is smaller than the sum of its proper divisors (36601615789908).

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

20102011010220 is a wasteful number, since it uses less digits than its factorization.

20102011010220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4599439 (or 4599437 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 20102011010220 its reverse (2201011020102), we get a palindrome (22303022030322).

The spelling of 20102011010220 in words is "twenty trillion, one hundred two billion, eleven million, ten thousand, two hundred twenty".