1211202112 has 28 divisors (see below), whose sum is σ = 2410449840. Its totient is φ = 603844736.

The previous prime is 1211202107. The next prime is 1211202121. The reversal of 1211202112 is 2112021121.

It is a super-2 number, since 2×1211202112² = 2934021112226521088, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1211202092 and 1211202101.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 5062 + ... + 49477.

Almost surely, 2^1211202112 is an apocalyptic number.

It is an amenable number.

1211202112 is a deficient number, since it is larger than the sum of its proper divisors (1199247728).

1211202112 is an equidigital number, since it uses as much as digits as its factorization.

1211202112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54898 (or 54888 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

The square root of 1211202112 is about 34802.3291174599. The cubic root of 1211202112 is about 1065.9550051585.

Adding to 1211202112 its reverse (2112021121), we get a palindrome (3323223233).

The spelling of 1211202112 in words is "one billion, two hundred eleven million, two hundred two thousand, one hundred twelve".