122103212221012 has 72 divisors (see below), whose sum is σ = 250808904622080. Its totient is φ = 51858983668800.

The previous prime is 122103212220949. The next prime is 122103212221013. The reversal of 122103212221012 is 210122212301221.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122103212221013) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 139875988 + ... + 140746219.

It is an arithmetic number, because the mean of its divisors is an integer number (3483457008640).

Almost surely, 2^{122103212221012} is an apocalyptic number.

It is an amenable number.

122103212221012 is an abundant number, since it is smaller than the sum of its proper divisors (128705692401068).

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

122103212221012 is a wasteful number, since it uses less digits than its factorization.

122103212221012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280622293 (or 280622280 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 22.

Adding to 122103212221012 its reverse (210122212301221), we get a palindrome (332225424522233).

The spelling of 122103212221012 in words is "one hundred twenty-two trillion, one hundred three billion, two hundred twelve million, two hundred twenty-one thousand, twelve".