20121622204 has 6 divisors (see below), whose sum is σ = 35212838864. Its totient is φ = 10060811100.

The previous prime is 20121622201. The next prime is 20121622217. The reversal of 20121622204 is 40222612102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20121622201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2515202772 + ... + 2515202779.

Almost surely, 2^20121622204 is an apocalyptic number.

It is an amenable number.

20121622204 is a deficient number, since it is larger than the sum of its proper divisors (15091216660).

20121622204 is a wasteful number, since it uses less digits than its factorization.

20121622204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5030405555 (or 5030405553 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

The spelling of 20121622204 in words is "twenty billion, one hundred twenty-one million, six hundred twenty-two thousand, two hundred four".