2101111220029 has 2 divisors, whose sum is σ = 2101111220030. Its totient is φ = 2101111220028.

The previous prime is 2101111220017. The next prime is 2101111220063. The reversal of 2101111220029 is 9200221111012.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1671461122500 + 429650097529 = 1292850^2 + 655477^2 .

It is a cyclic number.

It is not a de Polignac number, because 2101111220029 - 2⁷ = 2101111219901 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2101111219991 and 2101111220009.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2101111220629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1050555610014 + 1050555610015.

It is an arithmetic number, because the mean of its divisors is an integer number (1050555610015).

Almost surely, 2^{2101111220029} is an apocalyptic number.

It is an amenable number.

2101111220029 is a deficient number, since it is larger than the sum of its proper divisors (1).

2101111220029 is an equidigital number, since it uses as much as digits as its factorization.

2101111220029 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 2101111220029 in words is "two trillion, one hundred one billion, one hundred eleven million, two hundred twenty thousand, twenty-nine".