1212512231101 has 8 divisors (see below), whose sum is σ = 1215378077760. Its totient is φ = 1209646857408.

The previous prime is 1212512231083. The next prime is 1212512231153. The reversal of 1212512231101 is 1011322152121.

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

It is a cyclic number.

It is not a de Polignac number, because 1212512231101 - 2³¹ = 1210364747453 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 (1212512231201) 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, 5308485 + ... + 5532181.

It is an arithmetic number, because the mean of its divisors is an integer number (151922259720).

Almost surely, 2^{1212512231101} is an apocalyptic number.

It is an amenable number.

1212512231101 is a deficient number, since it is larger than the sum of its proper divisors (2865846659).

1212512231101 is a wasteful number, since it uses less digits than its factorization.

1212512231101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236483.

The product of its (nonzero) digits is 240, while the sum is 22.

Adding to 1212512231101 its reverse (1011322152121), we get a palindrome (2223834383222).

The spelling of 1212512231101 in words is "one trillion, two hundred twelve billion, five hundred twelve million, two hundred thirty-one thousand, one hundred one".