221422644370552 has 128 divisors (see below), whose sum is σ = 424682595000000. Its totient is φ = 108207503179776.

The previous prime is 221422644370549. The next prime is 221422644370559. The reversal of 221422644370552 is 255073446224122.

It is a junction number, because it is equal to n+sod(n) for n = 221422644370496 and 221422644370505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221422644370559) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 104003119824 + ... + 104003121952.

Almost surely, 2^{221422644370552} is an apocalyptic number.

It is an amenable number.

221422644370552 is a deficient number, since it is larger than the sum of its proper divisors (203259950629448).

221422644370552 is a wasteful number, since it uses less digits than its factorization.

221422644370552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4673 (or 4669 counting only the distinct ones).

The product of its (nonzero) digits is 6451200, while the sum is 49.

The spelling of 221422644370552 in words is "two hundred twenty-one trillion, four hundred twenty-two billion, six hundred forty-four million, three hundred seventy thousand, five hundred fifty-two".