121210121122 has 4 divisors (see below), whose sum is σ = 181815181686. Its totient is φ = 60605060560.

The previous prime is 121210121119. The next prime is 121210121143. The reversal of 121210121122 is 221121012121.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 84273509401 + 36936611721 = 290299^2 + 192189^2 .

It is a junction number, because it is equal to n+sod(n) for n = 121210121096 and 121210121105.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30302530279 + ... + 30302530282.

Almost surely, 2^121210121122 is an apocalyptic number.

121210121122 is a deficient number, since it is larger than the sum of its proper divisors (60605060564).

121210121122 is an equidigital number, since it uses as much as digits as its factorization.

121210121122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60605060563.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 121210121122 its reverse (221121012121), we get a palindrome (342331133243).

The spelling of 121210121122 in words is "one hundred twenty-one billion, two hundred ten million, one hundred twenty-one thousand, one hundred twenty-two".