102222201144457 has 2 divisors, whose sum is σ = 102222201144458. Its totient is φ = 102222201144456.

The previous prime is 102222201144443. The next prime is 102222201144499. The reversal of 102222201144457 is 754441102222201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 58130423197561 + 44091777946896 = 7624331^2 + 6640164^2 .

It is an emirp because it is prime and its reverse (754441102222201) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 102222201144457 - 2²³ = 102222192755849 is a prime.

It is not a weakly prime, because it can be changed into another prime (102222201144757) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51111100572228 + 51111100572229.

It is an arithmetic number, because the mean of its divisors is an integer number (51111100572229).

Almost surely, 2^{102222201144457} is an apocalyptic number.

It is an amenable number.

102222201144457 is a deficient number, since it is larger than the sum of its proper divisors (1).

102222201144457 is an equidigital number, since it uses as much as digits as its factorization.

102222201144457 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 71680, while the sum is 37.

Adding to 102222201144457 its reverse (754441102222201), we get a palindrome (856663303366658).

The spelling of 102222201144457 in words is "one hundred two trillion, two hundred twenty-two billion, two hundred one million, one hundred forty-four thousand, four hundred fifty-seven".