1202122221120 has 168 divisors, whose sum is σ = 4246551272184. Its totient is φ = 311901954048.

The previous prime is 1202122221071. The next prime is 1202122221137. The reversal of 1202122221120 is 211222212021.

It is a happy number.

1202122221120 is a `hidden beast` number, since 1 + 202 + 122 + 221 + 120 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 65749165056 + 1136373056064 = 256416^2 + 1066008^2 .

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 = 1202122221093 and 1202122221102.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5534029 + ... + 5747148.

Almost surely, 2^{1202122221120} is an apocalyptic number.

1202122221120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1202122221120 is an abundant number, since it is smaller than the sum of its proper divisors (3044429051064).

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

1202122221120 is a wasteful number, since it uses less digits than its factorization.

1202122221120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11281237 (or 11281224 counting only the distinct ones).

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

Adding to 1202122221120 its reverse (211222212021), we get a palindrome (1413344433141).

Subtracting from 1202122221120 its reverse (211222212021), we obtain a palindrome (990900009099).

The spelling of 1202122221120 in words is "one trillion, two hundred two billion, one hundred twenty-two million, two hundred twenty-one thousand, one hundred twenty".