101222221427 has 4 divisors (see below), whose sum is σ = 105623187600. Its totient is φ = 96821255256.

The previous prime is 101222221391. The next prime is 101222221447. The reversal of 101222221427 is 724122222101.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 724122222101 = 661 ⋅1095495041.

It is a cyclic number.

It is not a de Polignac number, because 101222221427 - 2⁶ = 101222221363 is a prime.

It is a super-2 number, since 2×101222221427² (a number of 23 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 = 101222221396 and 101222221405.

It is not an unprimeable number, because it can be changed into a prime (101222221447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2200483052 + ... + 2200483097.

It is an arithmetic number, because the mean of its divisors is an integer number (26405796900).

Almost surely, 2^101222221427 is an apocalyptic number.

101222221427 is a deficient number, since it is larger than the sum of its proper divisors (4400966173).

101222221427 is an equidigital number, since it uses as much as digits as its factorization.

101222221427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4400966172.

The product of its (nonzero) digits is 1792, while the sum is 26.

Adding to 101222221427 its reverse (724122222101), we get a palindrome (825344443528).

The spelling of 101222221427 in words is "one hundred one billion, two hundred twenty-two million, two hundred twenty-one thousand, four hundred twenty-seven".