121222100029 has 2 divisors, whose sum is σ = 121222100030. Its totient is φ = 121222100028.

The previous prime is 121222099997. The next prime is 121222100099. The reversal of 121222100029 is 920001222121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 121218867225 + 3232804 = 348165^2 + 1798^2 .

It is a cyclic number.

It is not a de Polignac number, because 121222100029 - 2⁵ = 121222099997 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 121222099982 and 121222100009.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121222100099) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60611050014 + 60611050015.

It is an arithmetic number, because the mean of its divisors is an integer number (60611050015).

Almost surely, 2^121222100029 is an apocalyptic number.

It is an amenable number.

121222100029 is a deficient number, since it is larger than the sum of its proper divisors (1).

121222100029 is an equidigital number, since it uses as much as digits as its factorization.

121222100029 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 22.

The spelling of 121222100029 in words is "one hundred twenty-one billion, two hundred twenty-two million, one hundred thousand, twenty-nine".