121102121110 has 32 divisors (see below), whose sum is σ = 220546372320. Its totient is φ = 47871952128.

The previous prime is 121102121089. The next prime is 121102121123. The reversal of 121102121110 is 11121201121.

It is a happy number.

It is a super-2 number, since 2×121102121110² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1748704 + ... + 1816636.

It is an arithmetic number, because the mean of its divisors is an integer number (6892074135).

Almost surely, 2^121102121110 is an apocalyptic number.

121102121110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121102121110 is a deficient number, since it is larger than the sum of its proper divisors (99444251210).

121102121110 is a wasteful number, since it uses less digits than its factorization.

121102121110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70032.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 121102121110 its reverse (11121201121), we get a palindrome (132223322231).

The spelling of 121102121110 in words is "one hundred twenty-one billion, one hundred two million, one hundred twenty-one thousand, one hundred ten".