121132121201 has 32 divisors (see below), whose sum is σ = 151515463680. Its totient is φ = 94288509504.

The previous prime is 121132121197. The next prime is 121132121207. The reversal of 121132121201 is 102121231121.

It is a happy number.

It is not a de Polignac number, because 121132121201 - 2² = 121132121197 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 121132121201.

It is not an unprimeable number, because it can be changed into a prime (121132121207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1771616 + ... + 1838718.

It is an arithmetic number, because the mean of its divisors is an integer number (4734858240).

Almost surely, 2^121132121201 is an apocalyptic number.

It is an amenable number.

121132121201 is a deficient number, since it is larger than the sum of its proper divisors (30383342479).

121132121201 is a wasteful number, since it uses less digits than its factorization.

121132121201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67445.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 121132121201 its reverse (102121231121), we get a palindrome (223253352322).

The spelling of 121132121201 in words is "one hundred twenty-one billion, one hundred thirty-two million, one hundred twenty-one thousand, two hundred one".