1202122131321 has 32 divisors (see below), whose sum is σ = 1758651381760. Its totient is φ = 727689479616.

The previous prime is 1202122131257. The next prime is 1202122131373. The reversal of 1202122131321 is 1231312212021.

It is not a de Polignac number, because 1202122131321 - 2⁶ = 1202122131257 is a prime.

It is a super-2 number, since 2×1202122131321² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1202122131521) 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, 4112401 + ... + 4395006.

It is an arithmetic number, because the mean of its divisors is an integer number (54957855680).

Almost surely, 2^{1202122131321} is an apocalyptic number.

It is an amenable number.

1202122131321 is a deficient number, since it is larger than the sum of its proper divisors (556529250439).

1202122131321 is a wasteful number, since it uses less digits than its factorization.

1202122131321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8507533.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 1202122131321 its reverse (1231312212021), we get a palindrome (2433434343342).

The spelling of 1202122131321 in words is "one trillion, two hundred two billion, one hundred twenty-two million, one hundred thirty-one thousand, three hundred twenty-one".