10221020211020 has 12 divisors (see below), whose sum is σ = 21464142443184. Its totient is φ = 4088408084400.

The previous prime is 10221020210971. The next prime is 10221020211023. The reversal of 10221020211020 is 2011202012201.

It is a junction number, because it is equal to n+sod(n) for n = 10221020210986 and 10221020211004.

It is not an unprimeable number, because it can be changed into a prime (10221020211023) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 255525505256 + ... + 255525505295.

It is an arithmetic number, because the mean of its divisors is an integer number (1788678536932).

Almost surely, 2^{10221020211020} is an apocalyptic number.

10221020211020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10221020211020 is an abundant number, since it is smaller than the sum of its proper divisors (11243122232164).

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

10221020211020 is a wasteful number, since it uses less digits than its factorization.

10221020211020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 511051010560 (or 511051010558 counting only the distinct ones).

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

Adding to 10221020211020 its reverse (2011202012201), we get a palindrome (12232222223221).

The spelling of 10221020211020 in words is "ten trillion, two hundred twenty-one billion, twenty million, two hundred eleven thousand, twenty".