1201120100251 has 2 divisors, whose sum is σ = 1201120100252. Its totient is φ = 1201120100250.

The previous prime is 1201120100183. The next prime is 1201120100261. The reversal of 1201120100251 is 1520010211021.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1201120100251 - 2¹³ = 1201120092059 is a prime.

It is not a weakly prime, because it can be changed into another prime (1201120100261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 600560050125 + 600560050126.

It is an arithmetic number, because the mean of its divisors is an integer number (600560050126).

Almost surely, 2^{1201120100251} is an apocalyptic number.

1201120100251 is a deficient number, since it is larger than the sum of its proper divisors (1).

1201120100251 is an equidigital number, since it uses as much as digits as its factorization.

1201120100251 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 40, while the sum is 16.

Adding to 1201120100251 its reverse (1520010211021), we get a palindrome (2721130311272).

The spelling of 1201120100251 in words is "one trillion, two hundred one billion, one hundred twenty million, one hundred thousand, two hundred fifty-one".