121220101110110 has 16 divisors (see below), whose sum is σ = 219457431608256. Its totient is φ = 48207762752928.

The previous prime is 121220101110047. The next prime is 121220101110137. The reversal of 121220101110110 is 11011101022121.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35034709574 + ... + 35034713033.

It is an arithmetic number, because the mean of its divisors is an integer number (13716089475516).

Almost surely, 2^{121220101110110} is an apocalyptic number.

121220101110110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121220101110110 is a deficient number, since it is larger than the sum of its proper divisors (98237330498146).

121220101110110 is a wasteful number, since it uses less digits than its factorization.

121220101110110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70069422787.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 121220101110110 its reverse (11011101022121), we get a palindrome (132231202132231).

The spelling of 121220101110110 in words is "one hundred twenty-one trillion, two hundred twenty billion, one hundred one million, one hundred ten thousand, one hundred ten".