1200222201000 has 128 divisors (see below), whose sum is σ = 3745127093760. Its totient is φ = 320022176000.

The previous prime is 1200222200959. The next prime is 1200222201001. The reversal of 1200222201000 is 1022220021.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is not an unprimeable number, because it can be changed into a prime (1200222201001) 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 31 ways as a sum of consecutive naturals, for example, 34395562 + ... + 34430438.

It is an arithmetic number, because the mean of its divisors is an integer number (29258805420).

Almost surely, 2^{1200222201000} is an apocalyptic number.

1200222201000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1200222201000 is an abundant number, since it is smaller than the sum of its proper divisors (2544904892760).

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

1200222201000 is a wasteful number, since it uses less digits than its factorization.

1200222201000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46372 (or 46358 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 1200222201000 its reverse (1022220021), we get a palindrome (1201244421021).

The spelling of 1200222201000 in words is "one trillion, two hundred billion, two hundred twenty-two million, two hundred one thousand".