121022210121 has 8 divisors (see below), whose sum is σ = 161737340544. Its totient is φ = 80494276560.

The previous prime is 121022210119. The next prime is 121022210123. The reversal of 121022210121 is 121012220121.

It is an interprime number because it is at equal distance from previous prime (121022210119) and next prime (121022210123).

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

It is not a de Polignac number, because 121022210121 - 2¹ = 121022210119 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 121022210121.

It is not an unprimeable number, because it can be changed into a prime (121022210123) 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 7 ways as a sum of consecutive naturals, for example, 46797706 + ... + 46800291.

It is an arithmetic number, because the mean of its divisors is an integer number (20217167568).

Almost surely, 2^121022210121 is an apocalyptic number.

It is an amenable number.

121022210121 is a deficient number, since it is larger than the sum of its proper divisors (40715130423).

121022210121 is an equidigital number, since it uses as much as digits as its factorization.

121022210121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93598431.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 121022210121 its reverse (121012220121), we get a palindrome (242034430242).

The spelling of 121022210121 in words is "one hundred twenty-one billion, twenty-two million, two hundred ten thousand, one hundred twenty-one".