1202121122231 has 16 divisors (see below), whose sum is σ = 1270009628160. Its totient is φ = 1134700254720.

The previous prime is 1202121122221. The next prime is 1202121122249. The reversal of 1202121122231 is 1322211212021.

It is a cyclic number.

It is not a de Polignac number, because 1202121122231 - 2¹⁰ = 1202121121207 is a prime.

It is a super-2 number, since 2×1202121122231² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1202121122221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7528535 + ... + 7686551.

It is an arithmetic number, because the mean of its divisors is an integer number (79375601760).

Almost surely, 2^{1202121122231} is an apocalyptic number.

1202121122231 is a deficient number, since it is larger than the sum of its proper divisors (67888505929).

1202121122231 is a wasteful number, since it uses less digits than its factorization.

1202121122231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159494.

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 1202121122231 its reverse (1322211212021), we get a palindrome (2524332334252).

The spelling of 1202121122231 in words is "one trillion, two hundred two billion, one hundred twenty-one million, one hundred twenty-two thousand, two hundred thirty-one".