121011021110 has 16 divisors (see below), whose sum is σ = 248936957856. Its totient is φ = 41489492928.

The previous prime is 121011021101. The next prime is 121011021127. The reversal of 121011021110 is 11120110121.

It is a junction number, because it is equal to n+sod(n) for n = 121011021091 and 121011021100.

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, 864364367 + ... + 864364506.

It is an arithmetic number, because the mean of its divisors is an integer number (15558559866).

Almost surely, 2^121011021110 is an apocalyptic number.

121011021110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121011021110 is an abundant number, since it is smaller than the sum of its proper divisors (127925936746).

121011021110 is a wasteful number, since it uses less digits than its factorization.

121011021110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1728728887.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 121011021110 its reverse (11120110121), we get a palindrome (132131131231).

The spelling of 121011021110 in words is "one hundred twenty-one billion, eleven million, twenty-one thousand, one hundred ten".