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1222041341220 = 22357101181159161
BaseRepresentation
bin10001110010000111010…
…101110000110100100100
311022211022011101020221120
4101302013111300310210
5130010220040404340
62333221551013540
7154201216004040
oct21620725606444
94284264336846
101222041341220
114312a0529a77
12178a0b20a2b0
138b312b82b4b
144320b98b020
1521bc4c834d0
hex11c87570d24

1222041341220 has 192 divisors, whose sum is σ = 3971094446592. Its totient is φ = 275028480000.

The previous prime is 1222041341219. The next prime is 1222041341249. The reversal of 1222041341220 is 221431402221.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 7598440 + ... + 7757600.

It is an arithmetic number, because the mean of its divisors is an integer number (20682783576).

Almost surely, 21222041341220 is an apocalyptic number.

1222041341220 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 1222041341220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1985547223296).

1222041341220 is an abundant number, since it is smaller than the sum of its proper divisors (2749053105372).

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

1222041341220 is a wasteful number, since it uses less digits than its factorization.

1222041341220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159462 (or 159460 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 1222041341220 its reverse (221431402221), we get a palindrome (1443472743441).

The spelling of 1222041341220 in words is "one trillion, two hundred twenty-two billion, forty-one million, three hundred forty-one thousand, two hundred twenty".