2221628442145 has 16 divisors (see below), whose sum is σ = 3049186959360. Its totient is φ = 1522211241024.

The previous prime is 2221628442133. The next prime is 2221628442157. The reversal of 2221628442145 is 5412448261222.

It is an interprime number because it is at equal distance from previous prime (2221628442133) and next prime (2221628442157).

It is a cyclic number.

It is not a de Polignac number, because 2221628442145 - 2²⁹ = 2221091571233 is a prime.

It is a super-2 number, since 2×2221628442145² (a number of 25 digits) contains 22 as substring.

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, 24769582 + ... + 24859111.

It is an arithmetic number, because the mean of its divisors is an integer number (190574184960).

Almost surely, 2^{2221628442145} is an apocalyptic number.

It is an amenable number.

2221628442145 is a deficient number, since it is larger than the sum of its proper divisors (827558517215).

2221628442145 is a wasteful number, since it uses less digits than its factorization.

2221628442145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49629984.

The product of its digits is 491520, while the sum is 43.

The spelling of 2221628442145 in words is "two trillion, two hundred twenty-one billion, six hundred twenty-eight million, four hundred forty-two thousand, one hundred forty-five".