1212120210103 has 8 divisors (see below), whose sum is σ = 1322356378896. Its totient is φ = 1101891278400.

The previous prime is 1212120210101. The next prime is 1212120210139. The reversal of 1212120210103 is 3010120212121.

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

It is not a de Polignac number, because 1212120210103 - 2¹ = 1212120210101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212120210101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1456068 + ... + 2131753.

It is an arithmetic number, because the mean of its divisors is an integer number (165294547362).

Almost surely, 2^{1212120210103} is an apocalyptic number.

1212120210103 is a deficient number, since it is larger than the sum of its proper divisors (110236168793).

1212120210103 is a wasteful number, since it uses less digits than its factorization.

1212120210103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3618545.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 1212120210103 its reverse (3010120212121), we get a palindrome (4222240422224).

The spelling of 1212120210103 in words is "one trillion, two hundred twelve billion, one hundred twenty million, two hundred ten thousand, one hundred three".