10020221211111 has 4 divisors (see below), whose sum is σ = 13360294948152. Its totient is φ = 6680147474072.

The previous prime is 10020221211097. The next prime is 10020221211127. The reversal of 10020221211111 is 11111212202001.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 10020221211111 - 2¹⁵ = 10020221178343 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10020221211151) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1670036868516 + ... + 1670036868521.

It is an arithmetic number, because the mean of its divisors is an integer number (3340073737038).

Almost surely, 2^{10020221211111} is an apocalyptic number.

10020221211111 is a deficient number, since it is larger than the sum of its proper divisors (3340073737041).

10020221211111 is an equidigital number, since it uses as much as digits as its factorization.

10020221211111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3340073737040.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 10020221211111 its reverse (11111212202001), we get a palindrome (21131433413112).

The spelling of 10020221211111 in words is "ten trillion, twenty billion, two hundred twenty-one million, two hundred eleven thousand, one hundred eleven".