1202122122120 has 128 divisors (see below), whose sum is σ = 4008834086400. Its totient is φ = 320425072128.

The previous prime is 1202122122109. The next prime is 1202122122133. The reversal of 1202122122120 is 212212212021.

It is a happy number.

1202122122120 is a `hidden beast` number, since 1 + 202 + 1 + 221 + 221 + 20 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 1202122122093 and 1202122122102.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2226612 + ... + 2713308.

It is an arithmetic number, because the mean of its divisors is an integer number (31319016300).

Almost surely, 2^{1202122122120} is an apocalyptic number.

1202122122120 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 1202122122120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2004417043200).

1202122122120 is an abundant number, since it is smaller than the sum of its proper divisors (2806711964280).

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

1202122122120 is a wasteful number, since it uses less digits than its factorization.

1202122122120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 489004 (or 488994 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 1202122122120 its reverse (212212212021), we get a palindrome (1414334334141).

The spelling of 1202122122120 in words is "one trillion, two hundred two billion, one hundred twenty-two million, one hundred twenty-two thousand, one hundred twenty".