100021221220010 has 64 divisors (see below), whose sum is σ = 183426873477120. Its totient is φ = 39263714107200.

The previous prime is 100021221219943. The next prime is 100021221220027. The reversal of 100021221220010 is 10022122120001.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 64399649 + ... + 65934491.

It is an arithmetic number, because the mean of its divisors is an integer number (2866044898080).

Almost surely, 2^{100021221220010} is an apocalyptic number.

100021221220010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

100021221220010 is a deficient number, since it is larger than the sum of its proper divisors (83405652257110).

100021221220010 is a wasteful number, since it uses less digits than its factorization.

100021221220010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1535523.

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

Adding to 100021221220010 its reverse (10022122120001), we get a palindrome (110043343340011).

The spelling of 100021221220010 in words is "one hundred trillion, twenty-one billion, two hundred twenty-one million, two hundred twenty thousand, ten".