11022211011220 has 12 divisors (see below), whose sum is σ = 23146643123604. Its totient is φ = 4408884404480.

The previous prime is 11022211011193. The next prime is 11022211011257. The reversal of 11022211011220 is 2211011222011.

It can be written as a sum of positive squares in 2 ways, for example, as 2865829151376 + 8156381859844 = 1692876^2 + 2855938^2 .

It is a junction number, because it is equal to n+sod(n) for n = 11022211011194 and 11022211011203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 275555275261 + ... + 275555275300.

It is an arithmetic number, because the mean of its divisors is an integer number (1928886926967).

Almost surely, 2^{11022211011220} is an apocalyptic number.

11022211011220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11022211011220 is an abundant number, since it is smaller than the sum of its proper divisors (12124432112384).

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

11022211011220 is a wasteful number, since it uses less digits than its factorization.

11022211011220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 551110550570 (or 551110550568 counting only the distinct ones).

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

Adding to 11022211011220 its reverse (2211011222011), we get a palindrome (13233222233231).

The spelling of 11022211011220 in words is "eleven trillion, twenty-two billion, two hundred eleven million, eleven thousand, two hundred twenty".