22220000001002 has 4 divisors (see below), whose sum is σ = 33330000001506. Its totient is φ = 11110000000500.

The previous prime is 22220000000929. The next prime is 22220000001029. The reversal of 22220000001002 is 20010000002222.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 13399985038801 + 8820014962201 = 3660599^2 + 2969851^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5555000000249 + ... + 5555000000252.

Almost surely, 2^{22220000001002} is an apocalyptic number.

22220000001002 is a deficient number, since it is larger than the sum of its proper divisors (11110000000504).

22220000001002 is a wasteful number, since it uses less digits than its factorization.

22220000001002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11110000000503.

The product of its (nonzero) digits is 32, while the sum is 11.

Adding to 22220000001002 its reverse (20010000002222), we get a palindrome (42230000003224).

The spelling of 22220000001002 in words is "twenty-two trillion, two hundred twenty billion, one thousand, two".