1220211110029 has 2 divisors, whose sum is σ = 1220211110030. Its totient is φ = 1220211110028.

The previous prime is 1220211110009. The next prime is 1220211110039. The reversal of 1220211110029 is 9200111120221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 880222992804 + 339988117225 = 938202^2 + 583085^2 .

It is a cyclic number.

It is not a de Polignac number, because 1220211110029 - 2¹¹ = 1220211107981 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1220211109991 and 1220211110009.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1220211110009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 610105555014 + 610105555015.

It is an arithmetic number, because the mean of its divisors is an integer number (610105555015).

Almost surely, 2^{1220211110029} is an apocalyptic number.

It is an amenable number.

1220211110029 is a deficient number, since it is larger than the sum of its proper divisors (1).

1220211110029 is an equidigital number, since it uses as much as digits as its factorization.

1220211110029 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 22.

The spelling of 1220211110029 in words is "one trillion, two hundred twenty billion, two hundred eleven million, one hundred ten thousand, twenty-nine".