1222012102122 has 40 divisors (see below), whose sum is σ = 3129385491936. Its totient is φ = 349146314568.

The previous prime is 1222012102117. The next prime is 1222012102123. The reversal of 1222012102122 is 2212012102221.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 1222012102095 and 1222012102104.

It is not an unprimeable number, because it can be changed into a prime (1222012102123) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 538804908 + ... + 538807175.

Almost surely, 2^{1222012102122} is an apocalyptic number.

1222012102122 is an abundant number, since it is smaller than the sum of its proper divisors (1907373389814).

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

1222012102122 is a wasteful number, since it uses less digits than its factorization.

1222012102122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1077612104 (or 1077612095 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 1222012102122 its reverse (2212012102221), we get a palindrome (3434024204343).

Subtracting 1222012102122 from its reverse (2212012102221), we obtain a palindrome (990000000099).

The spelling of 1222012102122 in words is "one trillion, two hundred twenty-two billion, twelve million, one hundred two thousand, one hundred twenty-two".