20001112223222 has 32 divisors (see below), whose sum is σ = 32431079570400. Its totient is φ = 9196545535488.

The previous prime is 20001112223201. The next prime is 20001112223243. The reversal of 20001112223222 is 22232221110002.

It is an interprime number because it is at equal distance from previous prime (20001112223201) and next prime (20001112223243).

It is a super-2 number, since 2×20001112223222² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20001112223194 and 20001112223203.

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, 194570654 + ... + 194673422.

It is an arithmetic number, because the mean of its divisors is an integer number (1013471236575).

Almost surely, 2^{20001112223222} is an apocalyptic number.

20001112223222 is a deficient number, since it is larger than the sum of its proper divisors (12429967347178).

20001112223222 is a wasteful number, since it uses less digits than its factorization.

20001112223222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130880.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 20001112223222 its reverse (22232221110002), we get a palindrome (42233333333224).

The spelling of 20001112223222 in words is "twenty trillion, one billion, one hundred twelve million, two hundred twenty-three thousand, two hundred twenty-two".