10202121110018 has 8 divisors (see below), whose sum is σ = 15359650970880. Its totient is φ = 5082237453060.

The previous prime is 10202121110017. The next prime is 10202121110057. The reversal of 10202121110018 is 81001112120201.

It is a happy number.

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

It is not an unprimeable number, because it can be changed into a prime (10202121110017) 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, 9411550298 + ... + 9411551381.

It is an arithmetic number, because the mean of its divisors is an integer number (1919956371360).

Almost surely, 2^{10202121110018} is an apocalyptic number.

10202121110018 is a deficient number, since it is larger than the sum of its proper divisors (5157529860862).

10202121110018 is a wasteful number, since it uses less digits than its factorization.

10202121110018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18823101952.

The product of its (nonzero) digits is 64, while the sum is 20.

Adding to 10202121110018 its reverse (81001112120201), we get a palindrome (91203233230219).

The spelling of 10202121110018 in words is "ten trillion, two hundred two billion, one hundred twenty-one million, one hundred ten thousand, eighteen".