121001312201 has 16 divisors (see below), whose sum is σ = 151184652288. Its totient is φ = 94083066000.

The previous prime is 121001312171. The next prime is 121001312227. The reversal of 121001312201 is 102213100121.

It is a de Polignac number, because none of the positive numbers 2^k-121001312201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121001312251) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1661375 + ... + 1732676.

It is an arithmetic number, because the mean of its divisors is an integer number (9449040768).

Almost surely, 2^121001312201 is an apocalyptic number.

121001312201 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

121001312201 is a deficient number, since it is larger than the sum of its proper divisors (30183340087).

121001312201 is a wasteful number, since it uses less digits than its factorization.

121001312201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3394532.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 121001312201 its reverse (102213100121), we get a palindrome (223214412322).

The spelling of 121001312201 in words is "one hundred twenty-one billion, one million, three hundred twelve thousand, two hundred one".