1211101102 has 8 divisors (see below), whose sum is σ = 1842238512. Its totient is φ = 597021600.

The previous prime is 1211101093. The next prime is 1211101139. The reversal of 1211101102 is 2011011121.

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

It is a super-2 number, since 2×1211101102² = 2933531758531228808, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4264299 + ... + 4264582.

It is an arithmetic number, because the mean of its divisors is an integer number (230279814).

Almost surely, 2^1211101102 is an apocalyptic number.

1211101102 is a deficient number, since it is larger than the sum of its proper divisors (631137410).

1211101102 is an equidigital number, since it uses as much as digits as its factorization.

1211101102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8528954.

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

The square root of 1211101102 is about 34800.8778912257. The cubic root of 1211101102 is about 1065.9253720341.

Adding to 1211101102 its reverse (2011011121), we get a palindrome (3222112223).

The spelling of 1211101102 in words is "one billion, two hundred eleven million, one hundred one thousand, one hundred two".