121011112210220 has 12 divisors (see below), whose sum is σ = 254123335641504. Its totient is φ = 48404444884080.

The previous prime is 121011112210187. The next prime is 121011112210223. The reversal of 121011112210220 is 22012211110121.

It is not an unprimeable number, because it can be changed into a prime (121011112210223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3025277805236 + ... + 3025277805275.

It is an arithmetic number, because the mean of its divisors is an integer number (21176944636792).

Almost surely, 2^{121011112210220} is an apocalyptic number.

121011112210220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121011112210220 is an abundant number, since it is smaller than the sum of its proper divisors (133112223431284).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121011112210220 is a wasteful number, since it uses less digits than its factorization.

121011112210220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6050555610520 (or 6050555610518 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 121011112210220 its reverse (22012211110121), we get a palindrome (143023323320341).

The spelling of 121011112210220 in words is "one hundred twenty-one trillion, eleven billion, one hundred twelve million, two hundred ten thousand, two hundred twenty".