20121076204 has 6 divisors (see below), whose sum is σ = 35211883364. Its totient is φ = 10060538100.

The previous prime is 20121076181. The next prime is 20121076211. The reversal of 20121076204 is 40267012102.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2515134522 + ... + 2515134529.

Almost surely, 2^20121076204 is an apocalyptic number.

It is an amenable number.

20121076204 is a deficient number, since it is larger than the sum of its proper divisors (15090807160).

20121076204 is a wasteful number, since it uses less digits than its factorization.

20121076204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5030269055 (or 5030269053 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 25.

Adding to 20121076204 its reverse (40267012102), we get a palindrome (60388088306).

The spelling of 20121076204 in words is "twenty billion, one hundred twenty-one million, seventy-six thousand, two hundred four".