101220202211221 has 8 divisors (see below), whose sum is σ = 103373997128064. Its totient is φ = 99066414527520.

The previous prime is 101220202211209. The next prime is 101220202211239. The reversal of 101220202211221 is 122112202022101.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-101220202211221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101220202211321) 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 7 ways as a sum of consecutive naturals, for example, 33900481 + ... + 36765241.

It is an arithmetic number, because the mean of its divisors is an integer number (12921749641008).

Almost surely, 2^{101220202211221} is an apocalyptic number.

It is an amenable number.

101220202211221 is a deficient number, since it is larger than the sum of its proper divisors (2153794916843).

101220202211221 is an equidigital number, since it uses as much as digits as its factorization.

101220202211221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3616571.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 101220202211221 its reverse (122112202022101), we get a palindrome (223332404233322).

The spelling of 101220202211221 in words is "one hundred one trillion, two hundred twenty billion, two hundred two million, two hundred eleven thousand, two hundred twenty-one".