1211212022 has 8 divisors (see below), whose sum is σ = 1923689736. Its totient is φ = 569982112.

The previous prime is 1211211979. The next prime is 1211212063. The reversal of 1211212022 is 2202121121.

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

It is a junction number, because it is equal to n+sod(n) for n = 1211211988 and 1211212006.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17811908 + ... + 17811975.

It is an arithmetic number, because the mean of its divisors is an integer number (240461217).

Almost surely, 2^1211212022 is an apocalyptic number.

1211212022 is a deficient number, since it is larger than the sum of its proper divisors (712477714).

1211212022 is a wasteful number, since it uses less digits than its factorization.

1211212022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35623902.

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

The square root of 1211212022 is about 34802.4714926972. The cubic root of 1211212022 is about 1065.9579123488.

Adding to 1211212022 its reverse (2202121121), we get a palindrome (3413333143).

Subtracting 1211212022 from its reverse (2202121121), we obtain a palindrome (990909099).

The spelling of 1211212022 in words is "one billion, two hundred eleven million, two hundred twelve thousand, twenty-two".