122066649 has 16 divisors (see below), whose sum is σ = 181012800. Its totient is φ = 81299808.

The previous prime is 122066629. The next prime is 122066657. The reversal of 122066649 is 946660221.

It is not a de Polignac number, because 122066649 - 2¹² = 122062553 is a prime.

It is not an unprimeable number, because it can be changed into a prime (122066629) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46042 + ... + 48620.

It is an arithmetic number, because the mean of its divisors is an integer number (11313300).

Almost surely, 2^122066649 is an apocalyptic number.

It is an amenable number.

122066649 is a deficient number, since it is larger than the sum of its proper divisors (58946151).

122066649 is a wasteful number, since it uses less digits than its factorization.

122066649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4341 (or 4335 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The square root of 122066649 is about 11048.3776637115. The cubic root of 122066649 is about 496.0578661784.

The spelling of 122066649 in words is "one hundred twenty-two million, sixty-six thousand, six hundred forty-nine".