100021221120011 has 4 divisors (see below), whose sum is σ = 100023183487224. Its totient is φ = 100019258752800.

The previous prime is 100021221119977. The next prime is 100021221120043. The reversal of 100021221120011 is 110021122120001.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100021221120011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100021221120811) 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, 981107150 + ... + 981209091.

It is an arithmetic number, because the mean of its divisors is an integer number (25005795871806).

Almost surely, 2^{100021221120011} is an apocalyptic number.

100021221120011 is a deficient number, since it is larger than the sum of its proper divisors (1962367213).

100021221120011 is an equidigital number, since it uses as much as digits as its factorization.

100021221120011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1962367212.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 100021221120011 its reverse (110021122120001), we get a palindrome (210042343240012).

The spelling of 100021221120011 in words is "one hundred trillion, twenty-one billion, two hundred twenty-one million, one hundred twenty thousand, eleven".