12101220029 has 2 divisors, whose sum is σ = 12101220030. Its totient is φ = 12101220028.

The previous prime is 12101219927. The next prime is 12101220073. The reversal of 12101220029 is 92002210121.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11989812004 + 111408025 = 109498^2 + 10555^2 .

It is a cyclic number.

It is not a de Polignac number, because 12101220029 - 2¹⁶ = 12101154493 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12103220029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6050610014 + 6050610015.

It is an arithmetic number, because the mean of its divisors is an integer number (6050610015).

Almost surely, 2^12101220029 is an apocalyptic number.

It is an amenable number.

12101220029 is a deficient number, since it is larger than the sum of its proper divisors (1).

12101220029 is an equidigital number, since it uses as much as digits as its factorization.

12101220029 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 20.

The spelling of 12101220029 in words is "twelve billion, one hundred one million, two hundred twenty thousand, twenty-nine".