100021222001020 has 24 divisors (see below), whose sum is σ = 211302318102624. Its totient is φ = 39768917009856.

The previous prime is 100021222000981. The next prime is 100021222001047. The reversal of 100021222001020 is 20100222120001.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14973233487 + ... + 14973240166.

It is an arithmetic number, because the mean of its divisors is an integer number (8804263254276).

Almost surely, 2^{100021222001020} is an apocalyptic number.

100021222001020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100021222001020 is an abundant number, since it is smaller than the sum of its proper divisors (111281096101604).

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

100021222001020 is a wasteful number, since it uses less digits than its factorization.

100021222001020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29946473829 (or 29946473827 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 100021222001020 its reverse (20100222120001), we get a palindrome (120121444121021).

The spelling of 100021222001020 in words is "one hundred trillion, twenty-one billion, two hundred twenty-two million, one thousand, twenty".