22212221002 has 8 divisors (see below), whose sum is σ = 33342602436. Its totient is φ = 11098020192.

The previous prime is 22212220981. The next prime is 22212221023. The reversal of 22212221002 is 20012221222.

It is an interprime number because it is at equal distance from previous prime (22212220981) and next prime (22212221023).

It can be written as a sum of positive squares in 2 ways, for example, as 19298488561 + 2913732441 = 138919^2 + 53979^2 .

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

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, 4041723 + ... + 4047214.

Almost surely, 2^22212221002 is an apocalyptic number.

22212221002 is a deficient number, since it is larger than the sum of its proper divisors (11130381434).

22212221002 is a wasteful number, since it uses less digits than its factorization.

22212221002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8090312.

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 22212221002 its reverse (20012221222), we get a palindrome (42224442224).

The spelling of 22212221002 in words is "twenty-two billion, two hundred twelve million, two hundred twenty-one thousand, two".