121121122000220 has 48 divisors (see below), whose sum is σ = 265414332391488. Its totient is φ = 46341803988480.

The previous prime is 121121122000211. The next prime is 121121122000237. The reversal of 121121122000220 is 22000221121121.

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, 169427930 + ... + 170141310.

It is an arithmetic number, because the mean of its divisors is an integer number (5529465258156).

Almost surely, 2^{121121122000220} is an apocalyptic number.

121121122000220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121121122000220 is an abundant number, since it is smaller than the sum of its proper divisors (144293210391268).

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

121121122000220 is a wasteful number, since it uses less digits than its factorization.

121121122000220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1082510 (or 1082508 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 121121122000220 its reverse (22000221121121), we get a palindrome (143121343121341).

The spelling of 121121122000220 in words is "one hundred twenty-one trillion, one hundred twenty-one billion, one hundred twenty-two million, two hundred twenty", and thus it is an aban number.