121221122033110 has 16 divisors (see below), whose sum is σ = 238034203265232. Its totient is φ = 44080408012000.

The previous prime is 121221122033093. The next prime is 121221122033257. The reversal of 121221122033110 is 11330221122121.

It is a happy number.

It is a super-2 number, since 2×121221122033110² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 551005100041 + ... + 551005100260.

It is an arithmetic number, because the mean of its divisors is an integer number (14877137704077).

Almost surely, 2^{121221122033110} is an apocalyptic number.

121221122033110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121221122033110 is a deficient number, since it is larger than the sum of its proper divisors (116813081232122).

121221122033110 is a wasteful number, since it uses less digits than its factorization.

121221122033110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1102010200319.

The product of its (nonzero) digits is 288, while the sum is 22.

Adding to 121221122033110 its reverse (11330221122121), we get a palindrome (132551343155231).

The spelling of 121221122033110 in words is "one hundred twenty-one trillion, two hundred twenty-one billion, one hundred twenty-two million, thirty-three thousand, one hundred ten".