101222221447 has 2 divisors, whose sum is σ = 101222221448. Its totient is φ = 101222221446.

The previous prime is 101222221391. The next prime is 101222221453. The reversal of 101222221447 is 744122222101.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-101222221447 is a prime.

It is a super-2 number, since 2×101222221447² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (101222221747) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50611110723 + 50611110724.

It is an arithmetic number, because the mean of its divisors is an integer number (50611110724).

Almost surely, 2^101222221447 is an apocalyptic number.

101222221447 is a deficient number, since it is larger than the sum of its proper divisors (1).

101222221447 is an equidigital number, since it uses as much as digits as its factorization.

101222221447 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3584, while the sum is 28.

Adding to 101222221447 its reverse (744122222101), we get a palindrome (845344443548).

The spelling of 101222221447 in words is "one hundred one billion, two hundred twenty-two million, two hundred twenty-one thousand, four hundred forty-seven".