101222644550 has 96 divisors (see below), whose sum is σ = 196561080000. Its totient is φ = 38745907200.

The previous prime is 101222644543. The next prime is 101222644559. The reversal of 101222644550 is 55446222101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101222644559) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 81042326 + ... + 81043574.

It is an arithmetic number, because the mean of its divisors is an integer number (2047511250).

Almost surely, 2^101222644550 is an apocalyptic number.

101222644550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

101222644550 is a deficient number, since it is larger than the sum of its proper divisors (95338435450).

101222644550 is a wasteful number, since it uses less digits than its factorization.

101222644550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1986 (or 1981 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 32.

Adding to 101222644550 its reverse (55446222101), we get a palindrome (156668866651).

The spelling of 101222644550 in words is "one hundred one billion, two hundred twenty-two million, six hundred forty-four thousand, five hundred fifty".