1212002110057 has 2 divisors, whose sum is σ = 1212002110058. Its totient is φ = 1212002110056.

The previous prime is 1212002110013. The next prime is 1212002110087. The reversal of 1212002110057 is 7500112002121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1000858184041 + 211143926016 = 1000429^2 + 459504^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1212002110057 is a prime.

It is a super-2 number, since 2×1212002110057² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1212002110087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 606001055028 + 606001055029.

It is an arithmetic number, because the mean of its divisors is an integer number (606001055029).

Almost surely, 2^{1212002110057} is an apocalyptic number.

It is an amenable number.

1212002110057 is a deficient number, since it is larger than the sum of its proper divisors (1).

1212002110057 is an equidigital number, since it uses as much as digits as its factorization.

1212002110057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 280, while the sum is 22.

Adding to 1212002110057 its reverse (7500112002121), we get a palindrome (8712114112178).

The spelling of 1212002110057 in words is "one trillion, two hundred twelve billion, two million, one hundred ten thousand, fifty-seven".