20100020111222 has 16 divisors (see below), whose sum is σ = 30489098932800. Its totient is φ = 9936989388480.

The previous prime is 20100020111219. The next prime is 20100020111239. The reversal of 20100020111222 is 22211102000102.

It is a super-2 number, since 2×20100020111222² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20100020111197 and 20100020111206.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19271072 + ... + 20287292.

It is an arithmetic number, because the mean of its divisors is an integer number (1905568683300).

Almost surely, 2^{20100020111222} is an apocalyptic number.

20100020111222 is a deficient number, since it is larger than the sum of its proper divisors (10389078821578).

20100020111222 is a wasteful number, since it uses less digits than its factorization.

20100020111222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1127431.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 20100020111222 its reverse (22211102000102), we get a palindrome (42311122111324).

The spelling of 20100020111222 in words is "twenty trillion, one hundred billion, twenty million, one hundred eleven thousand, two hundred twenty-two".