1211112203222 has 32 divisors (see below), whose sum is σ = 2020683801600. Its totient is φ = 541795782528.

The previous prime is 1211112203209. The next prime is 1211112203237. The reversal of 1211112203222 is 2223022111121.

It is a junction number, because it is equal to n+sod(n) for n = 1211112203194 and 1211112203203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8701283 + ... + 8839374.

It is an arithmetic number, because the mean of its divisors is an integer number (63146368800).

Almost surely, 2^{1211112203222} is an apocalyptic number.

1211112203222 is a deficient number, since it is larger than the sum of its proper divisors (809571598378).

1211112203222 is a wasteful number, since it uses less digits than its factorization.

1211112203222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17540780.

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 1211112203222 its reverse (2223022111121), we get a palindrome (3434134314343).

The spelling of 1211112203222 in words is "one trillion, two hundred eleven billion, one hundred twelve million, two hundred three thousand, two hundred twenty-two".