10120221210194 has 4 divisors (see below), whose sum is σ = 15180331815294. Its totient is φ = 5060110605096.

The previous prime is 10120221210173. The next prime is 10120221210247. The reversal of 10120221210194 is 49101212202101.

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

It can be written as a sum of positive squares in only one way, i.e., 10023461020225 + 96760189969 = 3165985^2 + 311063^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2530055302547 + ... + 2530055302550.

Almost surely, 2^{10120221210194} is an apocalyptic number.

10120221210194 is a deficient number, since it is larger than the sum of its proper divisors (5060110605100).

10120221210194 is an equidigital number, since it uses as much as digits as its factorization.

10120221210194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5060110605099.

The product of its (nonzero) digits is 576, while the sum is 26.

Adding to 10120221210194 its reverse (49101212202101), we get a palindrome (59221433412295).

The spelling of 10120221210194 in words is "ten trillion, one hundred twenty billion, two hundred twenty-one million, two hundred ten thousand, one hundred ninety-four".