1212220202147 has 2 divisors, whose sum is σ = 1212220202148. Its totient is φ = 1212220202146.

The previous prime is 1212220202041. The next prime is 1212220202161. The reversal of 1212220202147 is 7412020222121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1212220202147 - 2¹⁸ = 1212219940003 is a prime.

It is not a weakly prime, because it can be changed into another prime (1212220202197) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 606110101073 + 606110101074.

It is an arithmetic number, because the mean of its divisors is an integer number (606110101074).

Almost surely, 2^{1212220202147} is an apocalyptic number.

1212220202147 is a deficient number, since it is larger than the sum of its proper divisors (1).

1212220202147 is an equidigital number, since it uses as much as digits as its factorization.

1212220202147 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1792, while the sum is 26.

Adding to 1212220202147 its reverse (7412020222121), we get a palindrome (8624240424268).

The spelling of 1212220202147 in words is "one trillion, two hundred twelve billion, two hundred twenty million, two hundred two thousand, one hundred forty-seven".