1322121210120 has 48 divisors (see below), whose sum is σ = 4296893934060. Its totient is φ = 352565655936.

The previous prime is 1322121210107. The next prime is 1322121210121. The reversal of 1322121210120 is 210121212231.

1322121210120 is a `hidden beast` number, since 1 + 322 + 1 + 212 + 10 + 120 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1274320384164 + 47800825956 = 1128858^2 + 218634^2 .

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 = 1322121210093 and 1322121210102.

It is not an unprimeable number, because it can be changed into a prime (1322121210121) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1836279099 + ... + 1836279818.

Almost surely, 2^{1322121210120} is an apocalyptic number.

1322121210120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1322121210120 is an abundant number, since it is smaller than the sum of its proper divisors (2974772723940).

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

1322121210120 is a wasteful number, since it uses less digits than its factorization.

1322121210120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3672558934 (or 3672558927 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 1322121210120 its reverse (210121212231), we get a palindrome (1532242422351).

The spelling of 1322121210120 in words is "one trillion, three hundred twenty-two billion, one hundred twenty-one million, two hundred ten thousand, one hundred twenty".