10202121112194 has 72 divisors (see below), whose sum is σ = 24442277670720. Its totient is φ = 3073039456080.

The previous prime is 10202121112181. The next prime is 10202121112223. The reversal of 10202121112194 is 49121112120201.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 13660734 + ... + 14388185.

It is an arithmetic number, because the mean of its divisors is an integer number (339476078760).

Almost surely, 2^{10202121112194} is an apocalyptic number.

10202121112194 is an abundant number, since it is smaller than the sum of its proper divisors (14240156558526).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10202121112194 is a wasteful number, since it uses less digits than its factorization.

10202121112194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28049116 (or 28049102 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 27.

Adding to 10202121112194 its reverse (49121112120201), we get a palindrome (59323233232395).

The spelling of 10202121112194 in words is "ten trillion, two hundred two billion, one hundred twenty-one million, one hundred twelve thousand, one hundred ninety-four".