101220001202221 has 8 divisors (see below), whose sum is σ = 111162905532000. Its totient is φ = 91400611212240.

The previous prime is 101220001202171. The next prime is 101220001202291. The reversal of 101220001202221 is 122202100022101.

It is a happy number.

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

It is not a de Polignac number, because 101220001202221 - 2¹⁵ = 101220001169453 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 101220001202195 and 101220001202204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101220001202291) 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, 30878583231 + ... + 30878586508.

It is an arithmetic number, because the mean of its divisors is an integer number (13895363191500).

Almost surely, 2^{101220001202221} is an apocalyptic number.

101220001202221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

101220001202221 is a deficient number, since it is larger than the sum of its proper divisors (9942904329779).

101220001202221 is a wasteful number, since it uses less digits than its factorization.

101220001202221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61757169899.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 101220001202221 its reverse (122202100022101), we get a palindrome (223422101224322).

The spelling of 101220001202221 in words is "one hundred one trillion, two hundred twenty billion, one million, two hundred two thousand, two hundred twenty-one".