1211010663266 has 8 divisors (see below), whose sum is σ = 1816531329024. Its totient is φ = 605500220260.

The previous prime is 1211010663263. The next prime is 1211010663319. The reversal of 1211010663266 is 6623660101121.

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

It is not an unprimeable number, because it can be changed into a prime (1211010663263) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2252330 + ... + 2737701.

It is an arithmetic number, because the mean of its divisors is an integer number (227066416128).

Almost surely, 2^{1211010663266} is an apocalyptic number.

1211010663266 is a deficient number, since it is larger than the sum of its proper divisors (605520665758).

1211010663266 is a wasteful number, since it uses less digits than its factorization.

1211010663266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5111376.

The product of its (nonzero) digits is 15552, while the sum is 35.

Adding to 1211010663266 its reverse (6623660101121), we get a palindrome (7834670764387).

The spelling of 1211010663266 in words is "one trillion, two hundred eleven billion, ten million, six hundred sixty-three thousand, two hundred sixty-six".