1121020131212 has 6 divisors (see below), whose sum is σ = 1961785229628. Its totient is φ = 560510065604.

The previous prime is 1121020131199. The next prime is 1121020131239. The reversal of 1121020131212 is 2121310201211.

It is a happy number.

It is a super-2 number, since 2×1121020131212² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 140127516398 + ... + 140127516405.

It is an arithmetic number, because the mean of its divisors is an integer number (326964204938).

Almost surely, 2^{1121020131212} is an apocalyptic number.

It is an amenable number.

1121020131212 is a deficient number, since it is larger than the sum of its proper divisors (840765098416).

1121020131212 is a wasteful number, since it uses less digits than its factorization.

1121020131212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280255032807 (or 280255032805 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 1121020131212 its reverse (2121310201211), we get a palindrome (3242330332423).

The spelling of 1121020131212 in words is "one trillion, one hundred twenty-one billion, twenty million, one hundred thirty-one thousand, two hundred twelve".