121121110212022 has 4 divisors (see below), whose sum is σ = 181681665318036. Its totient is φ = 60560555106010.

The previous prime is 121121110212001. The next prime is 121121110212059. The reversal of 121121110212022 is 220212011121121.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30280277553004 + ... + 30280277553007.

It is an arithmetic number, because the mean of its divisors is an integer number (45420416329509).

Almost surely, 2^{121121110212022} is an apocalyptic number.

121121110212022 is a deficient number, since it is larger than the sum of its proper divisors (60560555106014).

121121110212022 is an equidigital number, since it uses as much as digits as its factorization.

121121110212022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60560555106013.

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 121121110212022 its reverse (220212011121121), we get a palindrome (341333121333143).

Subtracting 121121110212022 from its reverse (220212011121121), we obtain a palindrome (99090900909099).

The spelling of 121121110212022 in words is "one hundred twenty-one trillion, one hundred twenty-one billion, one hundred ten million, two hundred twelve thousand, twenty-two".