20130212198 has 4 divisors (see below), whose sum is σ = 30195318300. Its totient is φ = 10065106098.

The previous prime is 20130212161. The next prime is 20130212213. The reversal of 20130212198 is 89121203102.

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

It is a self number, because there is not a number n which added to its sum of digits gives 20130212198.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5032553048 + ... + 5032553051.

It is an arithmetic number, because the mean of its divisors is an integer number (7548829575).

Almost surely, 2^20130212198 is an apocalyptic number.

20130212198 is a deficient number, since it is larger than the sum of its proper divisors (10065106102).

20130212198 is a wasteful number, since it uses less digits than its factorization.

20130212198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10065106101.

The product of its (nonzero) digits is 1728, while the sum is 29.

The spelling of 20130212198 in words is "twenty billion, one hundred thirty million, two hundred twelve thousand, one hundred ninety-eight".