122621722276 has 12 divisors (see below), whose sum is σ = 214598679372. Its totient is φ = 61307813888.

The previous prime is 122621722259. The next prime is 122621722291. The reversal of 122621722276 is 672227126221.

It can be written as a sum of positive squares in 2 ways, for example, as 82497626176 + 40124096100 = 287224^2 + 200310^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 670045 + ... + 833188.

It is an arithmetic number, because the mean of its divisors is an integer number (17883223281).

Almost surely, 2^122621722276 is an apocalyptic number.

It is an amenable number.

122621722276 is a deficient number, since it is larger than the sum of its proper divisors (91976957096).

122621722276 is a wasteful number, since it uses less digits than its factorization.

122621722276 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1523630 (or 1523628 counting only the distinct ones).

The product of its digits is 112896, while the sum is 40.

Adding to 122621722276 its reverse (672227126221), we get a palindrome (794848848497).

The spelling of 122621722276 in words is "one hundred twenty-two billion, six hundred twenty-one million, seven hundred twenty-two thousand, two hundred seventy-six".