122069878225 has 9 divisors (see below), whose sum is σ = 151368815217. Its totient is φ = 97654505040.

The previous prime is 122069878169. The next prime is 122069878283. The reversal of 122069878225 is 522878960221.

The square root of 122069878225 is 349385.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 62017435089 + 60052443136 = 249033^2 + 245056^2 .

It is not a de Polignac number, because 122069878225 - 2¹⁹ = 122069353937 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1711987 + ... + 1781863.

Almost surely, 2^122069878225 is an apocalyptic number.

122069878225 is the 349385-th square number.

122069878225 is the 174693-rd centered octagonal number.

It is an amenable number.

122069878225 is a deficient number, since it is larger than the sum of its proper divisors (29298936992).

122069878225 is an frugal number, since it uses more digits than its factorization.

122069878225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139764 (or 69882 counting only the distinct ones).

The product of its (nonzero) digits is 1935360, while the sum is 52.

The spelling of 122069878225 in words is "one hundred twenty-two billion, sixty-nine million, eight hundred seventy-eight thousand, two hundred twenty-five".