20121122010029 has 2 divisors, whose sum is σ = 20121122010030. Its totient is φ = 20121122010028.

The previous prime is 20121122010007. The next prime is 20121122010113. The reversal of 20121122010029 is 92001022112102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19757269357225 + 363852652804 = 4444915^2 + 603202^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20121122010029 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20121122009986 and 20121122010013.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20121122012029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10060561005014 + 10060561005015.

It is an arithmetic number, because the mean of its divisors is an integer number (10060561005015).

Almost surely, 2^{20121122010029} is an apocalyptic number.

It is an amenable number.

20121122010029 is a deficient number, since it is larger than the sum of its proper divisors (1).

20121122010029 is an equidigital number, since it uses as much as digits as its factorization.

20121122010029 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 23.

The spelling of 20121122010029 in words is "twenty trillion, one hundred twenty-one billion, one hundred twenty-two million, ten thousand, twenty-nine".