22010000002002 has 12 divisors (see below), whose sum is σ = 47688333337710. Its totient is φ = 7336666667328.

The previous prime is 22010000001991. The next prime is 22010000002037. The reversal of 22010000002002 is 20020000001022.

It can be written as a sum of positive squares in only one way, i.e., 16783696497681 + 5226303504321 = 4096791^2 + 2286111^2 .

It is a Harshad number since it is a multiple of its sum of digits (9).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 611388888927 + ... + 611388888962.

Almost surely, 2^{22010000002002} is an apocalyptic number.

22010000002002 is an abundant number, since it is smaller than the sum of its proper divisors (25678333335708).

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

22010000002002 is a wasteful number, since it uses less digits than its factorization.

22010000002002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1222777777897 (or 1222777777894 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 9.

Adding to 22010000002002 its reverse (20020000001022), we get a palindrome (42030000003024).

The spelling of 22010000002002 in words is "twenty-two trillion, ten billion, two thousand, two".