10111220202220 has 24 divisors (see below), whose sum is σ = 21918516052608. Its totient is φ = 3914020723200.

The previous prime is 10111220202079. The next prime is 10111220202221. The reversal of 10111220202220 is 2220202211101.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 10111220202194 and 10111220202203.

It is not an unprimeable number, because it can be changed into a prime (10111220202221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8154209221 + ... + 8154210460.

It is an arithmetic number, because the mean of its divisors is an integer number (913271502192).

Almost surely, 2^{10111220202220} is an apocalyptic number.

10111220202220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10111220202220 is an abundant number, since it is smaller than the sum of its proper divisors (11807295850388).

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

10111220202220 is a wasteful number, since it uses less digits than its factorization.

10111220202220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16308419721 (or 16308419719 counting only the distinct ones).

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

Adding to 10111220202220 its reverse (2220202211101), we get a palindrome (12331422413321).

The spelling of 10111220202220 in words is "ten trillion, one hundred eleven billion, two hundred twenty million, two hundred two thousand, two hundred twenty".