1211202222010 has 128 divisors (see below), whose sum is σ = 2583296997120. Its totient is φ = 403852492800.

The previous prime is 1211202222007. The next prime is 1211202222017. The reversal of 1211202222010 is 102222021121.

It is a happy number.

It is a super-2 number, since 2×1211202222010² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1211202222017) 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 63 ways as a sum of consecutive naturals, for example, 56648442 + ... + 56669818.

It is an arithmetic number, because the mean of its divisors is an integer number (20182007790).

Almost surely, 2^{1211202222010} is an apocalyptic number.

1211202222010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1211202222010 is an abundant number, since it is smaller than the sum of its proper divisors (1372094775110).

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

1211202222010 is a wasteful number, since it uses less digits than its factorization.

1211202222010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22192.

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

Adding to 1211202222010 its reverse (102222021121), we get a palindrome (1313424243131).

The spelling of 1211202222010 in words is "one trillion, two hundred eleven billion, two hundred two million, two hundred twenty-two thousand, ten".