20121622201 has 2 divisors, whose sum is σ = 20121622202. Its totient is φ = 20121622200.

The previous prime is 20121622177. The next prime is 20121622217. The reversal of 20121622201 is 10222612102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12808806976 + 7312815225 = 113176^2 + 85515^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20121622201 is a prime.

It is not a weakly prime, because it can be changed into another prime (20121622601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10060811100 + 10060811101.

It is an arithmetic number, because the mean of its divisors is an integer number (10060811101).

Almost surely, 2^20121622201 is an apocalyptic number.

It is an amenable number.

20121622201 is a deficient number, since it is larger than the sum of its proper divisors (1).

20121622201 is an equidigital number, since it uses as much as digits as its factorization.

20121622201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 192, while the sum is 19.

The spelling of 20121622201 in words is "twenty billion, one hundred twenty-one million, six hundred twenty-two thousand, two hundred one".