122212640730 has 32 divisors (see below), whose sum is σ = 293368680000. Its totient is φ = 32583555072.

The previous prime is 122212640717. The next prime is 122212640743. The reversal of 122212640730 is 37046212221.

122212640730 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (122212640717) and next prime (122212640743).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 250855 + ... + 554394.

It is an arithmetic number, because the mean of its divisors is an integer number (9167771250).

Almost surely, 2^122212640730 is an apocalyptic number.

122212640730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

122212640730 is an abundant number, since it is smaller than the sum of its proper divisors (171156039270).

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

122212640730 is a wasteful number, since it uses less digits than its factorization.

122212640730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 810318.

The product of its (nonzero) digits is 8064, while the sum is 30.

Adding to 122212640730 its reverse (37046212221), we get a palindrome (159258852951).

The spelling of 122212640730 in words is "one hundred twenty-two billion, two hundred twelve million, six hundred forty thousand, seven hundred thirty".