122821266 has 16 divisors (see below), whose sum is σ = 245757600. Its totient is φ = 40921248.

The previous prime is 122821261. The next prime is 122821271. The reversal of 122821266 is 662128221.

It is an interprime number because it is at equal distance from previous prime (122821261) and next prime (122821271).

It is not an unprimeable number, because it can be changed into a prime (122821261) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16065 + ... + 22443.

It is an arithmetic number, because the mean of its divisors is an integer number (15359850).

Almost surely, 2^122821266 is an apocalyptic number.

122821266 is an abundant number, since it is smaller than the sum of its proper divisors (122936334).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

122821266 is a wasteful number, since it uses less digits than its factorization.

122821266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9593.

The product of its digits is 4608, while the sum is 30.

The square root of 122821266 is about 11082.4756259601. The cubic root of 122821266 is about 497.0779781754.

Adding to 122821266 its reverse (662128221), we get a palindrome (784949487).

The spelling of 122821266 in words is "one hundred twenty-two million, eight hundred twenty-one thousand, two hundred sixty-six".