121201020120202 has 32 divisors (see below), whose sum is σ = 208768963216320. Its totient is φ = 52191412888320.

The previous prime is 121201020120199. The next prime is 121201020120289. The reversal of 121201020120202 is 202021020102121.

It is a happy number.

It is a super-2 number, since 2×121201020120202² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

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 in 15 ways as a sum of consecutive naturals, for example, 54875968 + ... + 57041860.

It is an arithmetic number, because the mean of its divisors is an integer number (6524030100510).

Almost surely, 2^{121201020120202} is an apocalyptic number.

121201020120202 is a deficient number, since it is larger than the sum of its proper divisors (87567943096118).

121201020120202 is a wasteful number, since it uses less digits than its factorization.

121201020120202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2299798.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 121201020120202 its reverse (202021020102121), we get a palindrome (323222040222323).

The spelling of 121201020120202 in words is "one hundred twenty-one trillion, two hundred one billion, twenty million, one hundred twenty thousand, two hundred two".