10111211022220 has 96 divisors (see below), whose sum is σ = 26735098070016. Its totient is φ = 3120342816000.

The previous prime is 10111211022217. The next prime is 10111211022277. The reversal of 10111211022220 is 2222011211101.

It is a junction number, because it is equal to n+sod(n) for n = 10111211022194 and 10111211022203.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 32348032 + ... + 32659111.

It is an arithmetic number, because the mean of its divisors is an integer number (278490604896).

Almost surely, 2^{10111211022220} is an apocalyptic number.

10111211022220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10111211022220 is an abundant number, since it is smaller than the sum of its proper divisors (16623887047796).

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

10111211022220 is a wasteful number, since it uses less digits than its factorization.

10111211022220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65007271 (or 65007269 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 10111211022220 its reverse (2222011211101), we get a palindrome (12333222233321).

The spelling of 10111211022220 in words is "ten trillion, one hundred eleven billion, two hundred eleven million, twenty-two thousand, two hundred twenty".