221420266465514 has 8 divisors (see below), whose sum is σ = 332149898980260. Its totient is φ = 110703633472096.

The previous prime is 221420266465477. The next prime is 221420266465547. The reversal of 221420266465514 is 415564662024122.

It can be written as a sum of positive squares in 2 ways, for example, as 218853115879225 + 2567150586289 = 14793685^2 + 1602233^2 .

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

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, 3249837749 + ... + 3249905880.

Almost surely, 2^{221420266465514} is an apocalyptic number.

221420266465514 is a deficient number, since it is larger than the sum of its proper divisors (110729632514746).

221420266465514 is a wasteful number, since it uses less digits than its factorization.

221420266465514 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6499760664.

The product of its (nonzero) digits is 5529600, while the sum is 50.

The spelling of 221420266465514 in words is "two hundred twenty-one trillion, four hundred twenty billion, two hundred sixty-six million, four hundred sixty-five thousand, five hundred fourteen".