8425444861222 has 32 divisors (see below), whose sum is σ = 12892194627840. Its totient is φ = 4128806240160.

The previous prime is 8425444861219. The next prime is 8425444861261. The reversal of 8425444861222 is 2221684445248.

It is a super-2 number, since 2×8425444861222² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 8425444861222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21043888 + ... + 21440524.

It is an arithmetic number, because the mean of its divisors is an integer number (402881082120).

Almost surely, 2^{8425444861222} is an apocalyptic number.

8425444861222 is a deficient number, since it is larger than the sum of its proper divisors (4466749766618).

8425444861222 is a wasteful number, since it uses less digits than its factorization.

8425444861222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 397596.

The product of its digits is 7864320, while the sum is 52.

The spelling of 8425444861222 in words is "eight trillion, four hundred twenty-five billion, four hundred forty-four million, eight hundred sixty-one thousand, two hundred twenty-two".