2120001109 has 2 divisors, whose sum is σ = 2120001110. Its totient is φ = 2120001108.

The previous prime is 2120001083. The next prime is 2120001131. The reversal of 2120001109 is 9011000212.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1132659025 + 987342084 = 33655^2 + 31422^2 .

It is a cyclic number.

It is not a de Polignac number, because 2120001109 - 2¹⁷ = 2119870037 is a prime.

It is a super-2 number, since 2×2120001109² = 8988809404322459762, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2120001092 and 2120001101.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2120001809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1060000554 + 1060000555.

It is an arithmetic number, because the mean of its divisors is an integer number (1060000555).

Almost surely, 2^2120001109 is an apocalyptic number.

It is an amenable number.

2120001109 is a deficient number, since it is larger than the sum of its proper divisors (1).

2120001109 is an equidigital number, since it uses as much as digits as its factorization.

2120001109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36, while the sum is 16.

The square root of 2120001109 is about 46043.4697758542. The cubic root of 2120001109 is about 1284.6318817150.

The spelling of 2120001109 in words is "two billion, one hundred twenty million, one thousand, one hundred nine".