204134241121220 has 12 divisors (see below), whose sum is σ = 428681906354604. Its totient is φ = 81653696448480.

The previous prime is 204134241121211. The next prime is 204134241121387. The reversal of 204134241121220 is 22121142431402.

It can be written as a sum of positive squares in 2 ways, for example, as 92211002254336 + 111923238866884 = 9602656^2 + 10579378^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5103356028011 + ... + 5103356028050.

It is an arithmetic number, because the mean of its divisors is an integer number (35723492196217).

Almost surely, 2^{204134241121220} is an apocalyptic number.

204134241121220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

204134241121220 is an abundant number, since it is smaller than the sum of its proper divisors (224547665233384).

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

204134241121220 is a wasteful number, since it uses less digits than its factorization.

204134241121220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10206712056070 (or 10206712056068 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 29.

Adding to 204134241121220 its reverse (22121142431402), we get a palindrome (226255383552622).

The spelling of 204134241121220 in words is "two hundred four trillion, one hundred thirty-four billion, two hundred forty-one million, one hundred twenty-one thousand, two hundred twenty".