2021222069 has 2 divisors, whose sum is σ = 2021222070. Its totient is φ = 2021222068.

The previous prime is 2021222057. The next prime is 2021222081. The reversal of 2021222069 is 9602221202.

It is a balanced prime because it is at equal distance from previous prime (2021222057) and next prime (2021222081).

It can be written as a sum of positive squares in only one way, i.e., 2019154225 + 2067844 = 44935^2 + 1438^2 .

It is a cyclic number.

It is not a de Polignac number, because 2021222069 - 2²⁴ = 2004444853 is a prime.

It is a super-2 number, since 2×2021222069² = 8170677304425281522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2021222669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1010611034 + 1010611035.

It is an arithmetic number, because the mean of its divisors is an integer number (1010611035).

Almost surely, 2^2021222069 is an apocalyptic number.

It is an amenable number.

2021222069 is a deficient number, since it is larger than the sum of its proper divisors (1).

2021222069 is an equidigital number, since it uses as much as digits as its factorization.

2021222069 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 2021222069 is about 44958.0033920547. The cubic root of 2021222069 is about 1264.3617352238.

The spelling of 2021222069 in words is "two billion, twenty-one million, two hundred twenty-two thousand, sixty-nine".