1200021212210 has 16 divisors (see below), whose sum is σ = 2160052603776. Its totient is φ = 480005280048.

The previous prime is 1200021212147. The next prime is 1200021212219. The reversal of 1200021212210 is 122121200021.

It is not an unprimeable number, because it can be changed into a prime (1200021212219) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1693127 + ... + 2294933.

It is an arithmetic number, because the mean of its divisors is an integer number (135003287736).

Almost surely, 2^{1200021212210} is an apocalyptic number.

1200021212210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1200021212210 is a deficient number, since it is larger than the sum of its proper divisors (960031391566).

1200021212210 is a wasteful number, since it uses less digits than its factorization.

1200021212210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 801217.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 1200021212210 its reverse (122121200021), we get a palindrome (1322142412231).

The spelling of 1200021212210 in words is "one trillion, two hundred billion, twenty-one million, two hundred twelve thousand, two hundred ten".