121121102022201 has 16 divisors (see below), whose sum is σ = 179439351553920. Its totient is φ = 80747094497040.

The previous prime is 121121102022199. The next prime is 121121102022209. The reversal of 121121102022201 is 102220201121121.

121121102022201 is a `hidden beast` number, since 1 + 211 + 21 + 10 + 202 + 220 + 1 = 666.

It is not a de Polignac number, because 121121102022201 - 2¹ = 121121102022199 is a prime.

It is not an unprimeable number, because it can be changed into a prime (121121102022209) 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, 1171765 + ... + 15608178.

It is an arithmetic number, because the mean of its divisors is an integer number (11214959472120).

Almost surely, 2^{121121102022201} is an apocalyptic number.

It is an amenable number.

121121102022201 is a deficient number, since it is larger than the sum of its proper divisors (58318249531719).

121121102022201 is a wasteful number, since it uses less digits than its factorization.

121121102022201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17047293 (or 17047287 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 121121102022201 its reverse (102220201121121), we get a palindrome (223341303143322).

The spelling of 121121102022201 in words is "one hundred twenty-one trillion, one hundred twenty-one billion, one hundred two million, twenty-two thousand, two hundred one".