1212202221010 has 16 divisors (see below), whose sum is σ = 2380324361472. Its totient is φ = 440800807600.

The previous prime is 1212202220987. The next prime is 1212202221011. The reversal of 1212202221010 is 101222022121.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1212202221011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5510009986 + ... + 5510010205.

It is an arithmetic number, because the mean of its divisors is an integer number (148770272592).

Almost surely, 2^{1212202221010} is an apocalyptic number.

1212202221010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1212202221010 is a deficient number, since it is larger than the sum of its proper divisors (1168122140462).

1212202221010 is a wasteful number, since it uses less digits than its factorization.

1212202221010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11020020209.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 1212202221010 its reverse (101222022121), we get a palindrome (1313424243131).

The spelling of 1212202221010 in words is "one trillion, two hundred twelve billion, two hundred two million, two hundred twenty-one thousand, ten".