1202198420039 has 4 divisors (see below), whose sum is σ = 1202344663320. Its totient is φ = 1202052176760.

The previous prime is 1202198419997. The next prime is 1202198420051. The reversal of 1202198420039 is 9300248912021.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1202198420039 is a prime.

It is a super-2 number, since 2×1202198420039² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1202198419978 and 1202198420005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1202198420069) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 73109309 + ... + 73125750.

It is an arithmetic number, because the mean of its divisors is an integer number (300586165830).

Almost surely, 2^{1202198420039} is an apocalyptic number.

1202198420039 is a deficient number, since it is larger than the sum of its proper divisors (146243281).

1202198420039 is an equidigital number, since it uses as much as digits as its factorization.

1202198420039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146243280.

The product of its (nonzero) digits is 62208, while the sum is 41.

The spelling of 1202198420039 in words is "one trillion, two hundred two billion, one hundred ninety-eight million, four hundred twenty thousand, thirty-nine".