2123220004 has 12 divisors (see below), whose sum is σ = 3737113884. Its totient is φ = 1055473184.

The previous prime is 2123219993. The next prime is 2123220031. The reversal of 2123220004 is 4000223212.

It can be written as a sum of positive squares in 2 ways, for example, as 1693487104 + 429732900 = 41152^2 + 20730^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2123220004.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1533427 + ... + 1534810.

It is an arithmetic number, because the mean of its divisors is an integer number (311426157).

Almost surely, 2^2123220004 is an apocalyptic number.

It is an amenable number.

2123220004 is a deficient number, since it is larger than the sum of its proper divisors (1613893880).

2123220004 is a wasteful number, since it uses less digits than its factorization.

2123220004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3068414 (or 3068412 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 2123220004 is about 46078.4114743553. The cubic root of 2123220004 is about 1285.2817247822.

Adding to 2123220004 its reverse (4000223212), we get a palindrome (6123443216).

The spelling of 2123220004 in words is "two billion, one hundred twenty-three million, two hundred twenty thousand, four".