121011331201 has 2 divisors, whose sum is σ = 121011331202. Its totient is φ = 121011331200.

The previous prime is 121011331187. The next prime is 121011331219. The reversal of 121011331201 is 102133110121.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 120533952400 + 477378801 = 347180^2 + 21849^2 .

It is a cyclic number.

It is not a de Polignac number, because 121011331201 - 2⁵ = 121011331169 is a prime.

It is a super-2 number, since 2×121011331201² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (121011331241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60505665600 + 60505665601.

It is an arithmetic number, because the mean of its divisors is an integer number (60505665601).

Almost surely, 2^121011331201 is an apocalyptic number.

It is an amenable number.

121011331201 is a deficient number, since it is larger than the sum of its proper divisors (1).

121011331201 is an equidigital number, since it uses as much as digits as its factorization.

121011331201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 121011331201 its reverse (102133110121), we get a palindrome (223144441322).

The spelling of 121011331201 in words is "one hundred twenty-one billion, eleven million, three hundred thirty-one thousand, two hundred one".