1211122102 has 8 divisors (see below), whose sum is σ = 1817182800. Its totient is φ = 605394504.

The previous prime is 1211122097. The next prime is 1211122103. The reversal of 1211122102 is 2012211121.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1211122103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 73977 + ... + 88852.

It is an arithmetic number, because the mean of its divisors is an integer number (227147850).

Almost surely, 2^1211122102 is an apocalyptic number.

1211122102 is a deficient number, since it is larger than the sum of its proper divisors (606060698).

1211122102 is a wasteful number, since it uses less digits than its factorization.

1211122102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166550.

The product of its (nonzero) digits is 16, while the sum is 13.

The square root of 1211122102 is about 34801.1796064444. The cubic root of 1211122102 is about 1065.9315329025.

Adding to 1211122102 its reverse (2012211121), we get a palindrome (3223333223).

The spelling of 1211122102 in words is "one billion, two hundred eleven million, one hundred twenty-two thousand, one hundred two".