20122100029 has 2 divisors, whose sum is σ = 20122100030. Its totient is φ = 20122100028.

The previous prime is 20122099981. The next prime is 20122100059. The reversal of 20122100029 is 92000122102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16128492004 + 3993608025 = 126998^2 + 63195^2 .

It is a cyclic number.

It is not a de Polignac number, because 20122100029 - 2⁷ = 20122099901 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20122099979 and 20122100015.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20122100059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10061050014 + 10061050015.

It is an arithmetic number, because the mean of its divisors is an integer number (10061050015).

Almost surely, 2^20122100029 is an apocalyptic number.

It is an amenable number.

20122100029 is a deficient number, since it is larger than the sum of its proper divisors (1).

20122100029 is an equidigital number, since it uses as much as digits as its factorization.

20122100029 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 19.

The spelling of 20122100029 in words is "twenty billion, one hundred twenty-two million, one hundred thousand, twenty-nine".