121221222001222 has 8 divisors (see below), whose sum is σ = 207807809144976. Its totient is φ = 51951952286232.

The previous prime is 121221222001213. The next prime is 121221222001279. The reversal of 121221222001222 is 222100222122121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 121221222001193 and 121221222001202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4329329357173 + ... + 4329329357200.

It is an arithmetic number, because the mean of its divisors is an integer number (25975976143122).

Almost surely, 2^{121221222001222} is an apocalyptic number.

121221222001222 is a deficient number, since it is larger than the sum of its proper divisors (86586587143754).

121221222001222 is an equidigital number, since it uses as much as digits as its factorization.

121221222001222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8658658714382.

The product of its (nonzero) digits is 512, while the sum is 22.

Adding to 121221222001222 its reverse (222100222122121), we get a palindrome (343321444123343).

The spelling of 121221222001222 in words is "one hundred twenty-one trillion, two hundred twenty-one billion, two hundred twenty-two million, one thousand, two hundred twenty-two".