121220221094 has 32 divisors (see below), whose sum is σ = 209161779456. Its totient is φ = 51612850080.

The previous prime is 121220221091. The next prime is 121220221147. The reversal of 121220221094 is 490122022121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121220221091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6921689 + ... + 6939179.

It is an arithmetic number, because the mean of its divisors is an integer number (6536305608).

Almost surely, 2^121220221094 is an apocalyptic number.

121220221094 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

121220221094 is a deficient number, since it is larger than the sum of its proper divisors (87941558362).

121220221094 is a wasteful number, since it uses less digits than its factorization.

121220221094 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20700.

The product of its (nonzero) digits is 1152, while the sum is 26.

The spelling of 121220221094 in words is "one hundred twenty-one billion, two hundred twenty million, two hundred twenty-one thousand, ninety-four".