101222221202221 has 32 divisors (see below), whose sum is σ = 127981776591360. Its totient is φ = 78004720797696.

The previous prime is 101222221202161. The next prime is 101222221202281. The reversal of 101222221202221 is 122202122222101.

It is an interprime number because it is at equal distance from previous prime (101222221202161) and next prime (101222221202281).

It is not a de Polignac number, because 101222221202221 - 2¹⁹ = 101222220677933 is a prime.

It is a super-2 number, since 2×101222221202221² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 101222221202192 and 101222221202201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101222221202281) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 22355376 + ... + 26499193.

It is an arithmetic number, because the mean of its divisors is an integer number (3999430518480).

Almost surely, 2^{101222221202221} is an apocalyptic number.

It is an amenable number.

101222221202221 is a deficient number, since it is larger than the sum of its proper divisors (26759555389139).

101222221202221 is a wasteful number, since it uses less digits than its factorization.

101222221202221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48855373.

The product of its (nonzero) digits is 512, while the sum is 22.

Adding to 101222221202221 its reverse (122202122222101), we get a palindrome (223424343424322).

The spelling of 101222221202221 in words is "one hundred one trillion, two hundred twenty-two billion, two hundred twenty-one million, two hundred two thousand, two hundred twenty-one".