20021012110220 has 96 divisors (see below), whose sum is σ = 45964201973760. Its totient is φ = 7264847715840.

The previous prime is 20021012110219. The next prime is 20021012110277. The reversal of 20021012110220 is 2201121012002.

It is a junction number, because it is equal to n+sod(n) for n = 20021012110195 and 20021012110204.

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, 195163301 + ... + 195265859.

It is an arithmetic number, because the mean of its divisors is an integer number (478793770560).

Almost surely, 2^{20021012110220} is an apocalyptic number.

20021012110220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20021012110220 is an abundant number, since it is smaller than the sum of its proper divisors (25943189863540).

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

20021012110220 is a wasteful number, since it uses less digits than its factorization.

20021012110220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104463 (or 104461 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 20021012110220 its reverse (2201121012002), we get a palindrome (22222133122222).

The spelling of 20021012110220 in words is "twenty trillion, twenty-one billion, twelve million, one hundred ten thousand, two hundred twenty".