1012011001121 has 2 divisors, whose sum is σ = 1012011001122. Its totient is φ = 1012011001120.

The previous prime is 1012011001103. The next prime is 1012011001201. The reversal of 1012011001121 is 1211001102101.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 683755341025 + 328255660096 = 826895^2 + 572936^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1012011001121 is a prime.

It is not a weakly prime, because it can be changed into another prime (1012011001021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 506005500560 + 506005500561.

It is an arithmetic number, because the mean of its divisors is an integer number (506005500561).

Almost surely, 2^{1012011001121} is an apocalyptic number.

It is an amenable number.

1012011001121 is a deficient number, since it is larger than the sum of its proper divisors (1).

1012011001121 is an equidigital number, since it uses as much as digits as its factorization.

1012011001121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 1012011001121 its reverse (1211001102101), we get a palindrome (2223012103222).

The spelling of 1012011001121 in words is "one trillion, twelve billion, eleven million, one thousand, one hundred twenty-one".