121220221110010 has 128 divisors (see below), whose sum is σ = 241246587230208. Its totient is φ = 43488213120000.

The previous prime is 121220221109921. The next prime is 121220221110029. The reversal of 121220221110010 is 10011122022121.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4370960104 + ... + 4370987836.

It is an arithmetic number, because the mean of its divisors is an integer number (1884738962736).

Almost surely, 2^{121220221110010} is an apocalyptic number.

121220221110010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121220221110010 is a deficient number, since it is larger than the sum of its proper divisors (120026366120198).

121220221110010 is a wasteful number, since it uses less digits than its factorization.

121220221110010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29240.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 121220221110010 its reverse (10011122022121), we get a palindrome (131231343132131).

The spelling of 121220221110010 in words is "one hundred twenty-one trillion, two hundred twenty billion, two hundred twenty-one million, one hundred ten thousand, ten".