1011211010057 has 2 divisors, whose sum is σ = 1011211010058. Its totient is φ = 1011211010056.

The previous prime is 1011211010021. The next prime is 1011211010101. The reversal of 1011211010057 is 7500101121101.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 589725700096 + 421485309961 = 767936^2 + 649219^2 .

It is a cyclic number.

It is not a de Polignac number, because 1011211010057 - 2¹⁰ = 1011211009033 is a prime.

It is not a weakly prime, because it can be changed into another prime (1011211010357) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 505605505028 + 505605505029.

It is an arithmetic number, because the mean of its divisors is an integer number (505605505029).

Almost surely, 2^{1011211010057} is an apocalyptic number.

It is an amenable number.

1011211010057 is a deficient number, since it is larger than the sum of its proper divisors (1).

1011211010057 is an equidigital number, since it uses as much as digits as its factorization.

1011211010057 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 70, while the sum is 20.

Adding to 1011211010057 its reverse (7500101121101), we get a palindrome (8511312131158).

The spelling of 1011211010057 in words is "one trillion, eleven billion, two hundred eleven million, ten thousand, fifty-seven".