1211201222102 has 16 divisors (see below), whose sum is σ = 1861232990400. Its totient is φ = 590792112960.

The previous prime is 1211201222039. The next prime is 1211201222137. The reversal of 1211201222102 is 2012221021121.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 841424 + ... + 1769292.

It is an arithmetic number, because the mean of its divisors is an integer number (116327061900).

Almost surely, 2^{1211201222102} is an apocalyptic number.

1211201222102 is a deficient number, since it is larger than the sum of its proper divisors (650031768298).

1211201222102 is a wasteful number, since it uses less digits than its factorization.

1211201222102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 943831.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 1211201222102 its reverse (2012221021121), we get a palindrome (3223422243223).

The spelling of 1211201222102 in words is "one trillion, two hundred eleven billion, two hundred one million, two hundred twenty-two thousand, one hundred two".