121120221220012 has 24 divisors (see below), whose sum is σ = 247184124941600. Its totient is φ = 51908666236560.

The previous prime is 121120221219983. The next prime is 121120221220079. The reversal of 121120221220012 is 210022122021121.

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, 44140020939 + ... + 44140023682.

Almost surely, 2^{121120221220012} is an apocalyptic number.

It is an amenable number.

121120221220012 is an abundant number, since it is smaller than the sum of its proper divisors (126063903721588).

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

121120221220012 is an equidigital number, since it uses as much as digits as its factorization.

121120221220012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88280044646 (or 88280044630 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 121120221220012 its reverse (210022122021121), we get a palindrome (331142343241133).

The spelling of 121120221220012 in words is "one hundred twenty-one trillion, one hundred twenty billion, two hundred twenty-one million, two hundred twenty thousand, twelve".