121211020982 has 8 divisors (see below), whose sum is σ = 181818058656. Its totient is φ = 60605001432.

The previous prime is 121211020981. The next prime is 121211021011. The reversal of 121211020982 is 289020112121.

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

It is a super-2 number, since 2×121211020982² (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 (121211020981) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 220163 + ... + 539345.

It is an arithmetic number, because the mean of its divisors is an integer number (22727257332).

Almost surely, 2^121211020982 is an apocalyptic number.

121211020982 is a deficient number, since it is larger than the sum of its proper divisors (60607037674).

121211020982 is a wasteful number, since it uses less digits than its factorization.

121211020982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 509062.

The product of its (nonzero) digits is 1152, while the sum is 29.

The spelling of 121211020982 in words is "one hundred twenty-one billion, two hundred eleven million, twenty thousand, nine hundred eighty-two".