1202021101247 has 2 divisors, whose sum is σ = 1202021101248. Its totient is φ = 1202021101246.

The previous prime is 1202021101201. The next prime is 1202021101249. The reversal of 1202021101247 is 7421011202021.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1202021101247 - 2³² = 1197726133951 is a prime.

Together with 1202021101249, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1202021101249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 601010550623 + 601010550624.

It is an arithmetic number, because the mean of its divisors is an integer number (601010550624).

Almost surely, 2^{1202021101247} is an apocalyptic number.

1202021101247 is a deficient number, since it is larger than the sum of its proper divisors (1).

1202021101247 is an equidigital number, since it uses as much as digits as its factorization.

1202021101247 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 448, while the sum is 23.

Adding to 1202021101247 its reverse (7421011202021), we get a palindrome (8623032303268).

The spelling of 1202021101247 in words is "one trillion, two hundred two billion, twenty-one million, one hundred one thousand, two hundred forty-seven".