10202201020078 has 8 divisors (see below), whose sum is σ = 15358548106872. Its totient is φ = 5082684984456.

The previous prime is 10202201020049. The next prime is 10202201020079. The reversal of 10202201020078 is 87002010220201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10202201020079) 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, 9207762100 + ... + 9207763207.

It is an arithmetic number, because the mean of its divisors is an integer number (1919818513359).

Almost surely, 2^{10202201020078} is an apocalyptic number.

10202201020078 is a deficient number, since it is larger than the sum of its proper divisors (5156347086794).

10202201020078 is a wasteful number, since it uses less digits than its factorization.

10202201020078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18415525586.

The product of its (nonzero) digits is 896, while the sum is 25.

Adding to 10202201020078 its reverse (87002010220201), we get a palindrome (97204211240279).

The spelling of 10202201020078 in words is "ten trillion, two hundred two billion, two hundred one million, twenty thousand, seventy-eight".