2010121200557 has 2 divisors, whose sum is σ = 2010121200558. Its totient is φ = 2010121200556.

The previous prime is 2010121200541. The next prime is 2010121200599. The reversal of 2010121200557 is 7550021210102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1035450740041 + 974670460516 = 1017571^2 + 987254^2 .

It is a cyclic number.

It is not a de Polignac number, because 2010121200557 - 2⁴ = 2010121200541 is a prime.

It is a super-2 number, since 2×2010121200557² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2010121200517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1005060600278 + 1005060600279.

It is an arithmetic number, because the mean of its divisors is an integer number (1005060600279).

Almost surely, 2^{2010121200557} is an apocalyptic number.

It is an amenable number.

2010121200557 is a deficient number, since it is larger than the sum of its proper divisors (1).

2010121200557 is an equidigital number, since it uses as much as digits as its factorization.

2010121200557 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1400, while the sum is 26.

Adding to 2010121200557 its reverse (7550021210102), we get a palindrome (9560142410659).

The spelling of 2010121200557 in words is "two trillion, ten billion, one hundred twenty-one million, two hundred thousand, five hundred fifty-seven".