121201120221122 has 64 divisors (see below), whose sum is σ = 197966170644480. Its totient is φ = 55426036838400.

The previous prime is 121201120221121. The next prime is 121201120221149. The reversal of 121201120221122 is 221122021102121.

It is a junction number, because it is equal to n+sod(n) for n = 121201120221094 and 121201120221103.

It is not an unprimeable number, because it can be changed into a prime (121201120221121) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1665569183 + ... + 1665641949.

It is an arithmetic number, because the mean of its divisors is an integer number (3093221416320).

Almost surely, 2^{121201120221122} is an apocalyptic number.

121201120221122 is a deficient number, since it is larger than the sum of its proper divisors (76765050423358).

121201120221122 is a wasteful number, since it uses less digits than its factorization.

121201120221122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77507.

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 121201120221122 its reverse (221122021102121), we get a palindrome (342323141323243).

The spelling of 121201120221122 in words is "one hundred twenty-one trillion, two hundred one billion, one hundred twenty million, two hundred twenty-one thousand, one hundred twenty-two".