121132220122 has 8 divisors (see below), whose sum is σ = 181700284500. Its totient is φ = 60565458624.

The previous prime is 121132220081. The next prime is 121132220149. The reversal of 121132220122 is 221022231121.

It can be written as a sum of positive squares in 2 ways, for example, as 116534159641 + 4598060481 = 341371^2 + 67809^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 121132220122.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44847 + ... + 494242.

Almost surely, 2^121132220122 is an apocalyptic number.

121132220122 is a deficient number, since it is larger than the sum of its proper divisors (60568064378).

121132220122 is a wasteful number, since it uses less digits than its factorization.

121132220122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 651440.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 121132220122 its reverse (221022231121), we get a palindrome (342154451243).

The spelling of 121132220122 in words is "one hundred twenty-one billion, one hundred thirty-two million, two hundred twenty thousand, one hundred twenty-two".