1012222100212 has 12 divisors (see below), whose sum is σ = 1773772783776. Its totient is φ = 505429876280.

The previous prime is 1012222100173. The next prime is 1012222100231. The reversal of 1012222100212 is 2120012222101.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 170290114 + ... + 170296057.

It is an arithmetic number, because the mean of its divisors is an integer number (147814398648).

Almost surely, 2^{1012222100212} is an apocalyptic number.

It is an amenable number.

1012222100212 is a deficient number, since it is larger than the sum of its proper divisors (761550683564).

1012222100212 is a wasteful number, since it uses less digits than its factorization.

1012222100212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 340586918 (or 340586916 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 1012222100212 its reverse (2120012222101), we get a palindrome (3132234322313).

The spelling of 1012222100212 in words is "one trillion, twelve billion, two hundred twenty-two million, one hundred thousand, two hundred twelve".