1212000100002 has 12 divisors (see below), whose sum is σ = 2626000216710. Its totient is φ = 404000033328.

The previous prime is 1212000099901. The next prime is 1212000100019. The reversal of 1212000100002 is 2000010002121.

It can be written as a sum of positive squares in only one way, i.e., 914201787321 + 297798312681 = 956139^2 + 545709^2 .

It is a Harshad number since it is a multiple of its sum of digits (9).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 33666669427 + ... + 33666669462.

Almost surely, 2^{1212000100002} is an apocalyptic number.

1212000100002 is an abundant number, since it is smaller than the sum of its proper divisors (1414000116708).

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

1212000100002 is a wasteful number, since it uses less digits than its factorization.

1212000100002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67333338897 (or 67333338894 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 1212000100002 its reverse (2000010002121), we get a palindrome (3212010102123).

The spelling of 1212000100002 in words is "one trillion, two hundred twelve billion, one hundred thousand, two".