20102220111022 has 64 divisors (see below), whose sum is σ = 35717113681920. Its totient is φ = 8306413629696.

The previous prime is 20102220111013. The next prime is 20102220111023. The reversal of 20102220111022 is 22011102220102.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 20102220110987 and 20102220111005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20102220111023) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 211918588 + ... + 212013424.

It is an arithmetic number, because the mean of its divisors is an integer number (558079901280).

Almost surely, 2^{20102220111022} is an apocalyptic number.

20102220111022 is a deficient number, since it is larger than the sum of its proper divisors (15614893570898).

20102220111022 is a wasteful number, since it uses less digits than its factorization.

20102220111022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99425.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 20102220111022 its reverse (22011102220102), we get a palindrome (42113322331124).

It can be divided in two parts, 20102 and 220111022, that multiplied together give a palindrome (4424671764244).

The spelling of 20102220111022 in words is "twenty trillion, one hundred two billion, two hundred twenty million, one hundred eleven thousand, twenty-two".