1212012212000 has 96 divisors (see below), whose sum is σ = 3153085593840. Its totient is φ = 456286924800.

The previous prime is 1212012211987. The next prime is 1212012212003. The reversal of 1212012212000 is 2122102121.

It can be written as a sum of positive squares in 8 ways, for example, as 50540435344 + 1161471776656 = 224812^2 + 1077716^2 .

It is not an unprimeable number, because it can be changed into a prime (1212012212003) 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, 8843855 + ... + 8979854.

Almost surely, 2^{1212012212000} is an apocalyptic number.

1212012212000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1212012212000 is an abundant number, since it is smaller than the sum of its proper divisors (1941073381840).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1212012212000 is a wasteful number, since it uses less digits than its factorization.

1212012212000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17823751 (or 17823733 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 1212012212000 its reverse (2122102121), we get a palindrome (1214134314121).

The spelling of 1212012212000 in words is "one trillion, two hundred twelve billion, twelve million, two hundred twelve thousand".