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1112210012220 = 22353761109151499
BaseRepresentation
bin10000001011110100111…
…000011111100000111100
310221022210211100122200120
4100023310320133200330
5121210301230342340
62210535304254540
7143232413055546
oct20136470374074
93838724318616
101112210012220
1139975a61398a
1215b678a71450
1380b5b5c1388
143bb8cd52696
151dde78a74d0
hex102f4e1f83c

1112210012220 has 384 divisors, whose sum is σ = 3308954880000. Its totient is φ = 278816256000.

The previous prime is 1112210012131. The next prime is 1112210012237. The reversal of 1112210012220 is 222100122111.

It is a super-2 number, since 2×11122100122202 (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 1112210012220.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 2228877531 + ... + 2228878029.

It is an arithmetic number, because the mean of its divisors is an integer number (8617070000).

Almost surely, 21112210012220 is an apocalyptic number.

1112210012220 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 1112210012220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1654477440000).

1112210012220 is an abundant number, since it is smaller than the sum of its proper divisors (2196744867780).

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

1112210012220 is a wasteful number, since it uses less digits than its factorization.

1112210012220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 869 (or 867 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 1112210012220 its reverse (222100122111), we get a palindrome (1334310134331).

The spelling of 1112210012220 in words is "one trillion, one hundred twelve billion, two hundred ten million, twelve thousand, two hundred twenty".