100021111212211 has 8 divisors (see below), whose sum is σ = 120326148826880. Its totient is φ = 81220150457928.

The previous prime is 100021111212119. The next prime is 100021111212223. The reversal of 100021111212211 is 112212111120001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 100021111212211 - 2⁷ = 100021111212083 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100021111212311) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 376019214951 + ... + 376019215216.

It is an arithmetic number, because the mean of its divisors is an integer number (15040768603360).

Almost surely, 2^{100021111212211} is an apocalyptic number.

100021111212211 is a deficient number, since it is larger than the sum of its proper divisors (20305037614669).

100021111212211 is an equidigital number, since it uses as much as digits as its factorization.

100021111212211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 752038430193.

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

Adding to 100021111212211 its reverse (112212111120001), we get a palindrome (212233222332212).

The spelling of 100021111212211 in words is "one hundred trillion, twenty-one billion, one hundred eleven million, two hundred twelve thousand, two hundred eleven".