1202201121 has 32 divisors (see below), whose sum is σ = 1863019008. Its totient is φ = 681488640.

The previous prime is 1202201113. The next prime is 1202201123. The reversal of 1202201121 is 1211022021.

It is not a de Polignac number, because 1202201121 - 2³ = 1202201113 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1202201097 and 1202201106.

It is not an unprimeable number, because it can be changed into a prime (1202201123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 84870 + ... + 98016.

It is an arithmetic number, because the mean of its divisors is an integer number (58219344).

Almost surely, 2^1202201121 is an apocalyptic number.

1202201121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1202201121 is a deficient number, since it is larger than the sum of its proper divisors (660817887).

1202201121 is a wasteful number, since it uses less digits than its factorization.

1202201121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13341.

The product of its (nonzero) digits is 16, while the sum is 12.

The square root of 1202201121 is about 34672.7720408969. The cubic root of 1202201121 is about 1063.3079056844.

Adding to 1202201121 its reverse (1211022021), we get a palindrome (2413223142).

Subtracting 1202201121 from its reverse (1211022021), we obtain a square (8820900 = 2970²).

The spelling of 1202201121 in words is "one billion, two hundred two million, two hundred one thousand, one hundred twenty-one".