1212210105701 has 24 divisors (see below), whose sum is σ = 1491373928160. Its totient is φ = 979685733600.

The previous prime is 1212210105679. The next prime is 1212210105793. The reversal of 1212210105701 is 1075010122121.

It is a happy number.

It is not a de Polignac number, because 1212210105701 - 2¹⁴ = 1212210089317 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212210105401) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2888990 + ... + 3281871.

It is an arithmetic number, because the mean of its divisors is an integer number (62140580340).

Almost surely, 2^{1212210105701} is an apocalyptic number.

It is an amenable number.

1212210105701 is a deficient number, since it is larger than the sum of its proper divisors (279163822459).

1212210105701 is a wasteful number, since it uses less digits than its factorization.

1212210105701 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6171105 (or 6171098 counting only the distinct ones).

The product of its (nonzero) digits is 280, while the sum is 23.

Adding to 1212210105701 its reverse (1075010122121), we get a palindrome (2287220227822).

The spelling of 1212210105701 in words is "one trillion, two hundred twelve billion, two hundred ten million, one hundred five thousand, seven hundred one".