10010021221220 has 48 divisors (see below), whose sum is σ = 21113586144000. Its totient is φ = 3986388806400.

The previous prime is 10010021221169. The next prime is 10010021221243. The reversal of 10010021221220 is 2212212001001.

It is a super-3 number, since 3×10010021221220³ (a number of 40 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 10010021221195 and 10010021221204.

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, 21996995 + ... + 22447445.

It is an arithmetic number, because the mean of its divisors is an integer number (439866378000).

Almost surely, 2^{10010021221220} is an apocalyptic number.

10010021221220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10010021221220 is an abundant number, since it is smaller than the sum of its proper divisors (11103564922780).

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

10010021221220 is a wasteful number, since it uses less digits than its factorization.

10010021221220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 455348 (or 455346 counting only the distinct ones).

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

Adding to 10010021221220 its reverse (2212212001001), we get a palindrome (12222233222221).

It can be divided in two parts, 1001002 and 1221220, that added together give a palindrome (2222222).

The spelling of 10010021221220 in words is "ten trillion, ten billion, twenty-one million, two hundred twenty-one thousand, two hundred twenty".