1420121253266 has 4 divisors (see below), whose sum is σ = 2130181879902. Its totient is φ = 710060626632.

The previous prime is 1420121253139. The next prime is 1420121253319. The reversal of 1420121253266 is 6623521210241.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 906503931025 + 513617322241 = 952105^2 + 716671^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 355030313315 + ... + 355030313318.

Almost surely, 2^{1420121253266} is an apocalyptic number.

1420121253266 is a deficient number, since it is larger than the sum of its proper divisors (710060626636).

1420121253266 is an equidigital number, since it uses as much as digits as its factorization.

1420121253266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 710060626635.

The product of its (nonzero) digits is 34560, while the sum is 35.

The spelling of 1420121253266 in words is "one trillion, four hundred twenty billion, one hundred twenty-one million, two hundred fifty-three thousand, two hundred sixty-six".