1201222012000 has 96 divisors (see below), whose sum is σ = 3079724566464. Its totient is φ = 459597952000.

The previous prime is 1201222011919. The next prime is 1201222012019. The reversal of 1201222012000 is 2102221021.

It is a happy number.

It is a super-2 number, since 2×1201222012000² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 6436381 + ... + 6620380.

It is an arithmetic number, because the mean of its divisors is an integer number (32080464234).

Almost surely, 2^{1201222012000} is an apocalyptic number.

1201222012000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1201222012000 is an abundant number, since it is smaller than the sum of its proper divisors (1878502554464).

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

1201222012000 is a wasteful number, since it uses less digits than its factorization.

1201222012000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13056809 (or 13056791 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 1201222012000 its reverse (2102221021), we get a palindrome (1203324233021).

The spelling of 1201222012000 in words is "one trillion, two hundred one billion, two hundred twenty-two million, twelve thousand".