122220331012 has 24 divisors (see below), whose sum is σ = 243887630616. Its totient is φ = 53091184128.

The previous prime is 122220330989. The next prime is 122220331033. The reversal of 122220331012 is 210133022221.

It can be written as a sum of positive squares in 4 ways, for example, as 8601449536 + 113618881476 = 92744^2 + 337074^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69128263 + ... + 69130030.

It is an arithmetic number, because the mean of its divisors is an integer number (10161984609).

Almost surely, 2^122220331012 is an apocalyptic number.

It is an amenable number.

122220331012 is a deficient number, since it is larger than the sum of its proper divisors (121667299604).

122220331012 is a wasteful number, since it uses less digits than its factorization.

122220331012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138258327 (or 138258325 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 122220331012 its reverse (210133022221), we get a palindrome (332353353233).

The spelling of 122220331012 in words is "one hundred twenty-two billion, two hundred twenty million, three hundred thirty-one thousand, twelve".