1201211212210 has 32 divisors (see below), whose sum is σ = 2220014744640. Its totient is φ = 467708635968.

The previous prime is 1201211212199. The next prime is 1201211212277. The reversal of 1201211212210 is 122121121021.

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, 4641100 + ... + 4893079.

It is an arithmetic number, because the mean of its divisors is an integer number (69375460770).

Almost surely, 2^{1201211212210} is an apocalyptic number.

1201211212210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1201211212210 is a deficient number, since it is larger than the sum of its proper divisors (1018803532430).

1201211212210 is a wasteful number, since it uses less digits than its factorization.

1201211212210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9534522.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 1201211212210 its reverse (122121121021), we get a palindrome (1323332333231).

It can be divided in two parts, 120121 and 1212210, that added together give a palindrome (1332331).

The spelling of 1201211212210 in words is "one trillion, two hundred one billion, two hundred eleven million, two hundred twelve thousand, two hundred ten".