1211022002212 has 12 divisors (see below), whose sum is σ = 2311951095216. Its totient is φ = 550464546440.

The previous prime is 1211022002209. The next prime is 1211022002231. The reversal of 1211022002212 is 2122002201121.

It is a happy number.

It is a super-2 number, since 2×1211022002212² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13761613618 + ... + 13761613705.

It is an arithmetic number, because the mean of its divisors is an integer number (192662591268).

Almost surely, 2^{1211022002212} is an apocalyptic number.

It is an amenable number.

1211022002212 is a deficient number, since it is larger than the sum of its proper divisors (1100929093004).

1211022002212 is a wasteful number, since it uses less digits than its factorization.

1211022002212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27523227338 (or 27523227336 counting only the distinct ones).

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

Adding to 1211022002212 its reverse (2122002201121), we get a palindrome (3333024203333).

The spelling of 1211022002212 in words is "one trillion, two hundred eleven billion, twenty-two million, two thousand, two hundred twelve".