1111213102220 has 192 divisors, whose sum is σ = 2730084376320. Its totient is φ = 376499515392.

The previous prime is 1111213102211. The next prime is 1111213102229. The reversal of 1111213102220 is 222013121111.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1111213102211) and next prime (1111213102229).

It is not an unprimeable number, because it can be changed into a prime (1111213102229) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 27206534 + ... + 27247346.

It is an arithmetic number, because the mean of its divisors is an integer number (14219189460).

Almost surely, 2^{1111213102220} is an apocalyptic number.

1111213102220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1111213102220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1365042188160).

1111213102220 is an abundant number, since it is smaller than the sum of its proper divisors (1618871274100).

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

1111213102220 is a wasteful number, since it uses less digits than its factorization.

1111213102220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41044 (or 41042 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 1111213102220 its reverse (222013121111), we get a palindrome (1333226223331).

The spelling of 1111213102220 in words is "one trillion, one hundred eleven billion, two hundred thirteen million, one hundred two thousand, two hundred twenty".