1011122212220 has 48 divisors (see below), whose sum is σ = 2196781292160. Its totient is φ = 390465847296.

The previous prime is 1011122212159. The next prime is 1011122212223. The reversal of 1011122212220 is 222122211101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1011122212223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6595964 + ... + 6747516.

It is an arithmetic number, because the mean of its divisors is an integer number (45766276920).

Almost surely, 2^{1011122212220} is an apocalyptic number.

1011122212220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1011122212220 is an abundant number, since it is smaller than the sum of its proper divisors (1185659079940).

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

1011122212220 is a wasteful number, since it uses less digits than its factorization.

1011122212220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163094 (or 163092 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 1011122212220 its reverse (222122211101), we get a palindrome (1233244423321).

The spelling of 1011122212220 in words is "one trillion, eleven billion, one hundred twenty-two million, two hundred twelve thousand, two hundred twenty".