205411021222130 has 16 divisors (see below), whose sum is σ = 369756846725760. Its totient is φ = 82160628816432.

The previous prime is 205411021222129. The next prime is 205411021222151. The reversal of 205411021222130 is 31222120114502.

It is a self number, because there is not a number n which added to its sum of digits gives 205411021222130.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 472230794 + ... + 472665573.

It is an arithmetic number, because the mean of its divisors is an integer number (23109802920360).

Almost surely, 2^{205411021222130} is an apocalyptic number.

205411021222130 is a deficient number, since it is larger than the sum of its proper divisors (164345825503630).

205411021222130 is a wasteful number, since it uses less digits than its factorization.

205411021222130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 944918113.

The product of its (nonzero) digits is 1920, while the sum is 26.

Adding to 205411021222130 its reverse (31222120114502), we get a palindrome (236633141336632).

The spelling of 205411021222130 in words is "two hundred five trillion, four hundred eleven billion, twenty-one million, two hundred twenty-two thousand, one hundred thirty".