1212300105051 has 32 divisors (see below), whose sum is σ = 1850012953600. Its totient is φ = 691731653760.

The previous prime is 1212300105017. The next prime is 1212300105059. The reversal of 1212300105051 is 1505010032121.

It is not a de Polignac number, because 1212300105051 - 2⁷ = 1212300104923 is a prime.

It is a super-3 number, since 3×1212300105051³ (a number of 37 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (1212300105059) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 48637170 + ... + 48662088.

It is an arithmetic number, because the mean of its divisors is an integer number (57812904800).

Almost surely, 2^{1212300105051} is an apocalyptic number.

1212300105051 is a deficient number, since it is larger than the sum of its proper divisors (637712848549).

1212300105051 is a wasteful number, since it uses less digits than its factorization.

1212300105051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28219.

The product of its (nonzero) digits is 300, while the sum is 21.

Adding to 1212300105051 its reverse (1505010032121), we get a palindrome (2717310137172).

The spelling of 1212300105051 in words is "one trillion, two hundred twelve billion, three hundred million, one hundred five thousand, fifty-one".