101212220000057 has 2 divisors, whose sum is σ = 101212220000058. Its totient is φ = 101212220000056.

The previous prime is 101212220000039. The next prime is 101212220000123. The reversal of 101212220000057 is 750000022212101.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 76274790799936 + 24937429200121 = 8733544^2 + 4993739^2 .

It is a cyclic number.

It is not a de Polignac number, because 101212220000057 - 2⁶ = 101212219999993 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 101212219999987 and 101212220000041.

It is not a weakly prime, because it can be changed into another prime (101212220000557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50606110000028 + 50606110000029.

It is an arithmetic number, because the mean of its divisors is an integer number (50606110000029).

Almost surely, 2^{101212220000057} is an apocalyptic number.

It is an amenable number.

101212220000057 is a deficient number, since it is larger than the sum of its proper divisors (1).

101212220000057 is an equidigital number, since it uses as much as digits as its factorization.

101212220000057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 560, while the sum is 23.

Adding to 101212220000057 its reverse (750000022212101), we get a palindrome (851212242212158).

The spelling of 101212220000057 in words is "one hundred one trillion, two hundred twelve billion, two hundred twenty million, fifty-seven", and thus it is an aban number.