122231121012 has 192 divisors, whose sum is σ = 425482444800. Its totient is φ = 29306136960.

The previous prime is 122231121011. The next prime is 122231121013. The reversal of 122231121012 is 210121132221.

It is an interprime number because it is at equal distance from previous prime (122231121011) and next prime (122231121013).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122231121011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 457212 + ... + 673427.

It is an arithmetic number, because the mean of its divisors is an integer number (2216054400).

Almost surely, 2^122231121012 is an apocalyptic number.

122231121012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

122231121012 is an abundant number, since it is smaller than the sum of its proper divisors (303251323788).

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

122231121012 is a wasteful number, since it uses less digits than its factorization.

122231121012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1130683 (or 1130675 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 122231121012 its reverse (210121132221), we get a palindrome (332352253233).

The spelling of 122231121012 in words is "one hundred twenty-two billion, two hundred thirty-one million, one hundred twenty-one thousand, twelve".