1212200212001 has 2 divisors, whose sum is σ = 1212200212002. Its totient is φ = 1212200212000.

The previous prime is 1212200211979. The next prime is 1212200212009. The reversal of 1212200212001 is 1002120022121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1020754584976 + 191445627025 = 1010324^2 + 437545^2 .

It is a cyclic number.

It is not a de Polignac number, because 1212200212001 - 2¹⁴ = 1212200195617 is a prime.

It is not a weakly prime, because it can be changed into another prime (1212200212009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 606100106000 + 606100106001.

It is an arithmetic number, because the mean of its divisors is an integer number (606100106001).

Almost surely, 2^{1212200212001} is an apocalyptic number.

It is an amenable number.

1212200212001 is a deficient number, since it is larger than the sum of its proper divisors (1).

1212200212001 is an equidigital number, since it uses as much as digits as its factorization.

1212200212001 is an evil number, because the sum of its binary digits is even.

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

Adding to 1212200212001 its reverse (1002120022121), we get a palindrome (2214320234122).

The spelling of 1212200212001 in words is "one trillion, two hundred twelve billion, two hundred million, two hundred twelve thousand, one".