121201201 has 16 divisors (see below), whose sum is σ = 134250048. Its totient is φ = 108505600.

The previous prime is 121201193. The next prime is 121201217. The reversal of 121201201 is 102102121.

It is a cyclic number.

It is not a de Polignac number, because 121201201 - 2³ = 121201193 is a prime.

It is a super-2 number, since 2×121201201² = 29379462247684802, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121201231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 349110 + ... + 349456.

It is an arithmetic number, because the mean of its divisors is an integer number (8390628).

Almost surely, 2^121201201 is an apocalyptic number.

121201201 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

121201201 is a deficient number, since it is larger than the sum of its proper divisors (13048847).

121201201 is a wasteful number, since it uses less digits than its factorization.

121201201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 752.

The product of its (nonzero) digits is 8, while the sum is 10.

The square root of 121201201 is about 11009.1417013317. The cubic root of 121201201 is about 494.8827406499.

Adding to 121201201 its reverse (102102121), we get a palindrome (223303322).

The spelling of 121201201 in words is "one hundred twenty-one million, two hundred one thousand, two hundred one".