121020221101120 has 224 divisors, whose sum is σ = 332887630749696. Its totient is φ = 41416531968000.

The previous prime is 121020221101093. The next prime is 121020221101123. The reversal of 121020221101120 is 21101122020121.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a junction number, because it is equal to n+sod(n) for n = 121020221101094 and 121020221101103.

It is not an unprimeable number, because it can be changed into a prime (121020221101123) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1516485220 + ... + 1516565020.

Almost surely, 2^{121020221101120} is an apocalyptic number.

121020221101120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 121020221101120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (166443815374848).

121020221101120 is an abundant number, since it is smaller than the sum of its proper divisors (211867409648576).

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

121020221101120 is a wasteful number, since it uses less digits than its factorization.

121020221101120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105189 (or 105179 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 121020221101120 its reverse (21101122020121), we get a palindrome (142121343121241).

It can be divided in two parts, 1210202 and 21101120, that added together give a palindrome (22311322).

The spelling of 121020221101120 in words is "one hundred twenty-one trillion, twenty billion, two hundred twenty-one million, one hundred one thousand, one hundred twenty".