121120221221022 has 64 divisors (see below), whose sum is σ = 250229340002304. Its totient is φ = 39062940456960.

The previous prime is 121120221220981. The next prime is 121120221221053. The reversal of 121120221221022 is 220122122021121.

It is a self number, because there is not a number n which added to its sum of digits gives 121120221221022.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13146072 + ... + 20373012.

It is an arithmetic number, because the mean of its divisors is an integer number (3909833437536).

Almost surely, 2^{121120221221022} is an apocalyptic number.

121120221221022 is an abundant number, since it is smaller than the sum of its proper divisors (129109118781282).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121120221221022 is a wasteful number, since it uses less digits than its factorization.

121120221221022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7227673.

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 121120221221022 its reverse (220122122021121), we get a palindrome (341242343242143).

The spelling of 121120221221022 in words is "one hundred twenty-one trillion, one hundred twenty billion, two hundred twenty-one million, two hundred twenty-one thousand, twenty-two".