122131550 has 12 divisors (see below), whose sum is σ = 227164776. Its totient is φ = 48852600.

The previous prime is 122131549. The next prime is 122131571. The reversal of 122131550 is 55131221.

It is a happy number.

It is a super-2 number, since 2×122131550² = 29832231010805000, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1221266 + ... + 1221365.

It is an arithmetic number, because the mean of its divisors is an integer number (18930398).

Almost surely, 2^122131550 is an apocalyptic number.

122131550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

122131550 is a deficient number, since it is larger than the sum of its proper divisors (105033226).

122131550 is a wasteful number, since it uses less digits than its factorization.

122131550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2442643 (or 2442638 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 20.

The square root of 122131550 is about 11051.3144014637. The cubic root of 122131550 is about 496.1457661023.

Adding to 122131550 its reverse (55131221), we get a palindrome (177262771).

The spelling of 122131550 in words is "one hundred twenty-two million, one hundred thirty-one thousand, five hundred fifty".