1202111222148 has 72 divisors (see below), whose sum is σ = 3200403271520. Its totient is φ = 379400060160.

The previous prime is 1202111222077. The next prime is 1202111222149. The reversal of 1202111222148 is 8412221112021.

It is not an unprimeable number, because it can be changed into a prime (1202111222149) 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 23 ways as a sum of consecutive naturals, for example, 720963 + ... + 1709973.

Almost surely, 2^{1202111222148} is an apocalyptic number.

1202111222148 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1202111222148, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1600201635760).

1202111222148 is an abundant number, since it is smaller than the sum of its proper divisors (1998292049372).

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

1202111222148 is a wasteful number, since it uses less digits than its factorization.

1202111222148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 990817 (or 990812 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 27.

Adding to 1202111222148 its reverse (8412221112021), we get a palindrome (9614332334169).

The spelling of 1202111222148 in words is "one trillion, two hundred two billion, one hundred eleven million, two hundred twenty-two thousand, one hundred forty-eight".