121011011010120 has 256 divisors, whose sum is σ = 476434329753600. Its totient is φ = 23821716418560.

The previous prime is 121011011010067. The next prime is 121011011010167. The reversal of 121011011010120 is 21010110110121.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 121011011010096 and 121011011010105.

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, 344467329 + ... + 344818448.

It is an arithmetic number, because the mean of its divisors is an integer number (1861071600600).

Almost surely, 2^{121011011010120} is an apocalyptic number.

121011011010120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121011011010120 is an abundant number, since it is smaller than the sum of its proper divisors (355423318743480).

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

121011011010120 is a wasteful number, since it uses less digits than its factorization.

121011011010120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 689285828 (or 689285824 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 12.

Adding to 121011011010120 its reverse (21010110110121), we get a palindrome (142021121120241).

It can be divided in two parts, 1210110110101 and 20, that added together give a palindrome (1210110110121).

The spelling of 121011011010120 in words is "one hundred twenty-one trillion, eleven billion, eleven million, ten thousand, one hundred twenty".