1212212103 has 16 divisors (see below), whose sum is σ = 1722892800. Its totient is φ = 755913600.

The previous prime is 1212212101. The next prime is 1212212119. The reversal of 1212212103 is 3012122121.

It is not a de Polignac number, because 1212212103 - 2¹ = 1212212101 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212212101) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 130098 + ... + 139103.

It is an arithmetic number, because the mean of its divisors is an integer number (107680800).

Almost surely, 2^1212212103 is an apocalyptic number.

1212212103 is a deficient number, since it is larger than the sum of its proper divisors (510680697).

1212212103 is a wasteful number, since it uses less digits than its factorization.

1212212103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 269302.

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 1212212103 is about 34816.8364875386. The cubic root of 1212212103 is about 1066.2512138694.

Adding to 1212212103 its reverse (3012122121), we get a palindrome (4224334224).

The spelling of 1212212103 in words is "one billion, two hundred twelve million, two hundred twelve thousand, one hundred three".