101210221020011 has 4 divisors (see below), whose sum is σ = 101404482481224. Its totient is φ = 101015959558800.

The previous prime is 101210221020001. The next prime is 101210221020017. The reversal of 101210221020011 is 110020122012101.

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-101210221020011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (101210221020017) 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, 97130729825 + ... + 97130730866.

It is an arithmetic number, because the mean of its divisors is an integer number (25351120620306).

Almost surely, 2^{101210221020011} is an apocalyptic number.

101210221020011 is a deficient number, since it is larger than the sum of its proper divisors (194261461213).

101210221020011 is an equidigital number, since it uses as much as digits as its factorization.

101210221020011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194261461212.

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

Adding to 101210221020011 its reverse (110020122012101), we get a palindrome (211230343032112).

The spelling of 101210221020011 in words is "one hundred one trillion, two hundred ten billion, two hundred twenty-one million, twenty thousand, eleven".