1212120222102 has 48 divisors (see below), whose sum is σ = 2717207616240. Its totient is φ = 390052170816.

The previous prime is 1212120222101. The next prime is 1212120222109. The reversal of 1212120222102 is 2012220212121.

It is a happy number.

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 (1212120222101) 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, 3590068 + ... + 3913160.

It is an arithmetic number, because the mean of its divisors is an integer number (56608492005).

Almost surely, 2^{1212120222102} is an apocalyptic number.

1212120222102 is an abundant number, since it is smaller than the sum of its proper divisors (1505087394138).

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

1212120222102 is a wasteful number, since it uses less digits than its factorization.

1212120222102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 330317 (or 330314 counting only the distinct ones).

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

Adding to 1212120222102 its reverse (2012220212121), we get a palindrome (3224340434223).

The spelling of 1212120222102 in words is "one trillion, two hundred twelve billion, one hundred twenty million, two hundred twenty-two thousand, one hundred two".