1200212112212 has 6 divisors (see below), whose sum is σ = 2100371196378. Its totient is φ = 600106056104.

The previous prime is 1200212112181. The next prime is 1200212112223. The reversal of 1200212112212 is 2122112120021.

It can be written as a sum of positive squares in only one way, i.e., 1047171542596 + 153040569616 = 1023314^2 + 391204^2 .

It is a super-2 number, since 2×1200212112212² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 150026514023 + ... + 150026514030.

It is an arithmetic number, because the mean of its divisors is an integer number (350061866063).

Almost surely, 2^{1200212112212} is an apocalyptic number.

It is an amenable number.

1200212112212 is a deficient number, since it is larger than the sum of its proper divisors (900159084166).

1200212112212 is a wasteful number, since it uses less digits than its factorization.

1200212112212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 300053028057 (or 300053028055 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 1200212112212 its reverse (2122112120021), we get a palindrome (3322324232233).

The spelling of 1200212112212 in words is "one trillion, two hundred billion, two hundred twelve million, one hundred twelve thousand, two hundred twelve".