1212130101 has 128 divisors (see below), whose sum is σ = 2179072000. Its totient is φ = 594397440.

The previous prime is 1212130063. The next prime is 1212130123. The reversal of 1212130101 is 1010312121.

It is not a de Polignac number, because 1212130101 - 2⁷ = 1212129973 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212130181) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 15343380 + ... + 15343458.

It is an arithmetic number, because the mean of its divisors is an integer number (17024000).

Almost surely, 2^1212130101 is an apocalyptic number.

It is an amenable number.

1212130101 is a deficient number, since it is larger than the sum of its proper divisors (966941899).

1212130101 is a wasteful number, since it uses less digits than its factorization.

1212130101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184 (or 170 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 12.

The square root of 1212130101 is about 34815.6588477082. The cubic root of 1212130101 is about 1066.2271705788.

Adding to 1212130101 its reverse (1010312121), we get a palindrome (2222442222).

The spelling of 1212130101 in words is "one billion, two hundred twelve million, one hundred thirty thousand, one hundred one".