20502311002222 has 32 divisors (see below), whose sum is σ = 36022362716160. Its totient is φ = 8569149368640.

The previous prime is 20502311002171. The next prime is 20502311002273. The reversal of 20502311002222 is 22220011320502.

It is an interprime number because it is at equal distance from previous prime (20502311002171) and next prime (20502311002273).

It is a junction number, because it is equal to n+sod(n) for n = 20502311002193 and 20502311002202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55257322 + ... + 55627117.

It is an arithmetic number, because the mean of its divisors is an integer number (1125698834880).

Almost surely, 2^{20502311002222} is an apocalyptic number.

20502311002222 is a deficient number, since it is larger than the sum of its proper divisors (15520051713938).

20502311002222 is a wasteful number, since it uses less digits than its factorization.

20502311002222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110884776.

The product of its (nonzero) digits is 960, while the sum is 22.

Adding to 20502311002222 its reverse (22220011320502), we get a palindrome (42722322322724).

The spelling of 20502311002222 in words is "twenty trillion, five hundred two billion, three hundred eleven million, two thousand, two hundred twenty-two".