2221989045 has 8 divisors (see below), whose sum is σ = 3555182496. Its totient is φ = 1185060816.

The previous prime is 2221989043. The next prime is 2221989053. The reversal of 2221989045 is 5409891222.

It is a happy number.

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

It is not a de Polignac number, because 2221989045 - 2¹ = 2221989043 is a prime.

It is a super-2 number, since 2×2221989045² = 9874470632200024050, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2221988988 and 2221989006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2221989043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 74066287 + ... + 74066316.

It is an arithmetic number, because the mean of its divisors is an integer number (444397812).

Almost surely, 2^2221989045 is an apocalyptic number.

It is an amenable number.

2221989045 is a deficient number, since it is larger than the sum of its proper divisors (1333193451).

2221989045 is a wasteful number, since it uses less digits than its factorization.

2221989045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148132611.

The product of its (nonzero) digits is 103680, while the sum is 42.

The square root of 2221989045 is about 47137.9787962955. The cubic root of 2221989045 is about 1304.9102358950.

The spelling of 2221989045 in words is "two billion, two hundred twenty-one million, nine hundred eighty-nine thousand, forty-five".