1211210000067 has 8 divisors (see below), whose sum is σ = 1630625761024. Its totient is φ = 799633786248.

The previous prime is 1211209999921. The next prime is 1211210000069. The reversal of 1211210000067 is 7600000121121.

It is a happy number.

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

It is not a de Polignac number, because 1211210000067 - 2¹⁹ = 1211209475779 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1211209999998 and 1211210000052.

It is not an unprimeable number, because it can be changed into a prime (1211210000069) 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, 1959886423 + ... + 1959887040.

It is an arithmetic number, because the mean of its divisors is an integer number (203828220128).

Almost surely, 2^{1211210000067} is an apocalyptic number.

1211210000067 is a deficient number, since it is larger than the sum of its proper divisors (419415760957).

1211210000067 is a wasteful number, since it uses less digits than its factorization.

1211210000067 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3919773569.

The product of its (nonzero) digits is 168, while the sum is 21.

Adding to 1211210000067 its reverse (7600000121121), we get a palindrome (8811210121188).

The spelling of 1211210000067 in words is "one trillion, two hundred eleven billion, two hundred ten million, sixty-seven", and thus it is an aban number.