101121221347 has 2 divisors, whose sum is σ = 101121221348. Its totient is φ = 101121221346.

The previous prime is 101121221239. The next prime is 101121221381. The reversal of 101121221347 is 743122121101.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 101121221347 - 2²³ = 101112832739 is a prime.

It is not a weakly prime, because it can be changed into another prime (101121222347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50560610673 + 50560610674.

It is an arithmetic number, because the mean of its divisors is an integer number (50560610674).

Almost surely, 2^101121221347 is an apocalyptic number.

101121221347 is a deficient number, since it is larger than the sum of its proper divisors (1).

101121221347 is an equidigital number, since it uses as much as digits as its factorization.

101121221347 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 672, while the sum is 25.

Adding to 101121221347 its reverse (743122121101), we get a palindrome (844243342448).

The spelling of 101121221347 in words is "one hundred one billion, one hundred twenty-one million, two hundred twenty-one thousand, three hundred forty-seven".