121121121022 has 16 divisors (see below), whose sum is σ = 200989724544. Its totient is φ = 54279631000.

The previous prime is 121121120999. The next prime is 121121121053. The reversal of 121121121022 is 220121121121.

121121121022 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 121121120987 and 121121121005.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38769604 + ... + 38772727.

It is an arithmetic number, because the mean of its divisors is an integer number (12561857784).

Almost surely, 2^121121121022 is an apocalyptic number.

121121121022 is a deficient number, since it is larger than the sum of its proper divisors (79868603522).

121121121022 is a wasteful number, since it uses less digits than its factorization.

121121121022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77542415.

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

Adding to 121121121022 its reverse (220121121121), we get a palindrome (341242242143).

Subtracting 121121121022 from its reverse (220121121121), we obtain a palindrome (99000000099).

The spelling of 121121121022 in words is "one hundred twenty-one billion, one hundred twenty-one million, one hundred twenty-one thousand, twenty-two".