11212001022220 has 24 divisors (see below), whose sum is σ = 23552944859808. Its totient is φ = 4483325606400.

The previous prime is 11212001022179. The next prime is 11212001022263. The reversal of 11212001022220 is 2222010021211.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 11212001022194 and 11212001022203.

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, 92112816 + ... + 92234455.

It is an arithmetic number, because the mean of its divisors is an integer number (981372702492).

Almost surely, 2^{11212001022220} is an apocalyptic number.

11212001022220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11212001022220 is an abundant number, since it is smaller than the sum of its proper divisors (12340943837588).

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

11212001022220 is a wasteful number, since it uses less digits than its factorization.

11212001022220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184350321 (or 184350319 counting only the distinct ones).

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

Adding to 11212001022220 its reverse (2222010021211), we get a palindrome (13434011043431).

The spelling of 11212001022220 in words is "eleven trillion, two hundred twelve billion, one million, twenty-two thousand, two hundred twenty".