1111012212220 has 24 divisors (see below), whose sum is σ = 2408387764608. Its totient is φ = 430069243200.

The previous prime is 1111012212203. The next prime is 1111012212223. The reversal of 1111012212220 is 222122101111.

It is a junction number, because it is equal to n+sod(n) for n = 1111012212194 and 1111012212203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1111012212223) 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, 895976971 + ... + 895978210.

It is an arithmetic number, because the mean of its divisors is an integer number (100349490192).

Almost surely, 2^{1111012212220} is an apocalyptic number.

1111012212220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1111012212220 is an abundant number, since it is smaller than the sum of its proper divisors (1297375552388).

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

1111012212220 is a wasteful number, since it uses less digits than its factorization.

1111012212220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1791955221 (or 1791955219 counting only the distinct ones).

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

Adding to 1111012212220 its reverse (222122101111), we get a palindrome (1333134313331).

The spelling of 1111012212220 in words is "one trillion, one hundred eleven billion, twelve million, two hundred twelve thousand, two hundred twenty".