121022142201 has 28 divisors (see below), whose sum is σ = 187303475200. Its totient is φ = 78078786840.

The previous prime is 121022142181. The next prime is 121022142203. The reversal of 121022142201 is 102241220121.

121022142201 is a `hidden beast` number, since 1 + 21 + 0 + 221 + 422 + 0 + 1 = 666.

It is not a de Polignac number, because 121022142201 - 2⁵ = 121022142169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121022142203) by changing a digit.

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 27 ways as a sum of consecutive naturals, for example, 2655001 + ... + 2700198.

Almost surely, 2^121022142201 is an apocalyptic number.

It is an amenable number.

121022142201 is a deficient number, since it is larger than the sum of its proper divisors (66281332999).

121022142201 is an frugal number, since it uses more digits than its factorization.

121022142201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5355248 (or 5355233 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 121022142201 its reverse (102241220121), we get a palindrome (223263362322).

The spelling of 121022142201 in words is "one hundred twenty-one billion, twenty-two million, one hundred forty-two thousand, two hundred one".