1211110102 has 16 divisors (see below), whose sum is σ = 1868257872. Its totient is φ = 588571360.

The previous prime is 1211110091. The next prime is 1211110129. The reversal of 1211110102 is 2010111121.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 42049 + ... + 64732.

It is an arithmetic number, because the mean of its divisors is an integer number (116766117).

Almost surely, 2^1211110102 is an apocalyptic number.

1211110102 is a deficient number, since it is larger than the sum of its proper divisors (657147770).

1211110102 is a wasteful number, since it uses less digits than its factorization.

1211110102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106943.

The product of its (nonzero) digits is 4, while the sum is 10.

The square root of 1211110102 is about 34801.0071980683. The cubic root of 1211110102 is about 1065.9280124150.

Adding to 1211110102 its reverse (2010111121), we get a palindrome (3221221223).

The spelling of 1211110102 in words is "one billion, two hundred eleven million, one hundred ten thousand, one hundred two".