101222687361566 has 4 divisors (see below), whose sum is σ = 151834031042352. Its totient is φ = 50611343680782.

The previous prime is 101222687361511. The next prime is 101222687361571. The reversal of 101222687361566 is 665163786222101.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25305671840390 + ... + 25305671840393.

It is an arithmetic number, because the mean of its divisors is an integer number (37958507760588).

Almost surely, 2^{101222687361566} is an apocalyptic number.

101222687361566 is a deficient number, since it is larger than the sum of its proper divisors (50611343680786).

101222687361566 is an equidigital number, since it uses as much as digits as its factorization.

101222687361566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50611343680785.

The product of its (nonzero) digits is 8709120, while the sum is 56.

The spelling of 101222687361566 in words is "one hundred one trillion, two hundred twenty-two billion, six hundred eighty-seven million, three hundred sixty-one thousand, five hundred sixty-six".