121222021982 has 8 divisors (see below), whose sum is σ = 184813902552. Its totient is φ = 59617387800.

The previous prime is 121222021981. The next prime is 121222022029. The reversal of 121222021982 is 289120222121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×121222021982² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121222021981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 496811444 + ... + 496811687.

It is an arithmetic number, because the mean of its divisors is an integer number (23101737819).

Almost surely, 2^121222021982 is an apocalyptic number.

121222021982 is a deficient number, since it is larger than the sum of its proper divisors (63591880570).

121222021982 is an equidigital number, since it uses as much as digits as its factorization.

121222021982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 993623194.

The product of its (nonzero) digits is 4608, while the sum is 32.

The spelling of 121222021982 in words is "one hundred twenty-one billion, two hundred twenty-two million, twenty-one thousand, nine hundred eighty-two".