2221123003002 has 40 divisors (see below), whose sum is σ = 4977161683956. Its totient is φ = 740344451328.

The previous prime is 2221123002971. The next prime is 2221123003003. The reversal of 2221123003002 is 2003003211222.

2221123003002 is a `hidden beast` number, since 222 + 112 + 30 + 0 + 300 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 2218368957561 + 2754045441 = 1489419^2 + 52479^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (2221123003003) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 3947818 + ... + 4475210.

Almost surely, 2^{2221123003002} is an apocalyptic number.

2221123003002 is an abundant number, since it is smaller than the sum of its proper divisors (2756038680954).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2221123003002 is a wasteful number, since it uses less digits than its factorization.

2221123003002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 553404 (or 553395 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 2221123003002 its reverse (2003003211222), we get a palindrome (4224126214224).

The spelling of 2221123003002 in words is "two trillion, two hundred twenty-one billion, one hundred twenty-three million, three thousand, two".