1121212202331 has 32 divisors (see below), whose sum is σ = 1644394752000. Its totient is φ = 675216353664.

The previous prime is 1121212202287. The next prime is 1121212202339. The reversal of 1121212202331 is 1332022121211.

It is not a de Polignac number, because 1121212202331 - 2¹⁵ = 1121212169563 is a prime.

It is a super-2 number, since 2×1121212202331² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1121212202298 and 1121212202307.

It is not an unprimeable number, because it can be changed into a prime (1121212202339) 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, 17838546 + ... + 17901288.

It is an arithmetic number, because the mean of its divisors is an integer number (51387336000).

Almost surely, 2^{1121212202331} is an apocalyptic number.

1121212202331 is a deficient number, since it is larger than the sum of its proper divisors (523182549669).

1121212202331 is a wasteful number, since it uses less digits than its factorization.

1121212202331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72555.

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

Adding to 1121212202331 its reverse (1332022121211), we get a palindrome (2453234323542).

The spelling of 1121212202331 in words is "one trillion, one hundred twenty-one billion, two hundred twelve million, two hundred two thousand, three hundred thirty-one".