1211222002010 has 8 divisors (see below), whose sum is σ = 2180199603636. Its totient is φ = 484488800800.

The previous prime is 1211222001989. The next prime is 1211222002019. The reversal of 1211222002010 is 102002221121.

It can be written as a sum of positive squares in 2 ways, for example, as 1081893299881 + 129328702129 = 1040141^2 + 359623^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×1211222002010² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1211222002019) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60561100091 + ... + 60561100110.

Almost surely, 2^{1211222002010} is an apocalyptic number.

1211222002010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1211222002010 is a deficient number, since it is larger than the sum of its proper divisors (968977601626).

1211222002010 is a wasteful number, since it uses less digits than its factorization.

1211222002010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121122200208.

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

Adding to 1211222002010 its reverse (102002221121), we get a palindrome (1313224223131).

The spelling of 1211222002010 in words is "one trillion, two hundred eleven billion, two hundred twenty-two million, two thousand, ten".