1212101102 has 4 divisors (see below), whose sum is σ = 1818151656. Its totient is φ = 606050550.

The previous prime is 1212101053. The next prime is 1212101119. The reversal of 1212101102 is 2011012121.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×1212101102² = 2938378162939228808, 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 (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 303025274 + ... + 303025277.

It is an arithmetic number, because the mean of its divisors is an integer number (454537914).

Almost surely, 2^1212101102 is an apocalyptic number.

1212101102 is a deficient number, since it is larger than the sum of its proper divisors (606050554).

1212101102 is an equidigital number, since it uses as much as digits as its factorization.

1212101102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 606050553.

The product of its (nonzero) digits is 8, while the sum is 11.

The square root of 1212101102 is about 34815.2423803138. The cubic root of 1212101102 is about 1066.2186677049.

Adding to 1212101102 its reverse (2011012121), we get a palindrome (3223113223).

The spelling of 1212101102 in words is "one billion, two hundred twelve million, one hundred one thousand, one hundred two".